What is Involuntary muscle contraction in an artery?

What is Involuntary muscle contraction in an artery?
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Which of the following terms refers to muscle tension being unchanged with muscle shortening and joint motion? a) Isotonic contraction Exercises such as swimming and bicycling are isotonic. b) Isometric contraction Isometric contraction is characterized by increased muscle tension, unchanged muscle length, and no joint motion. c) Contracture Contracture refers to abnormal shortening of muscle, joint, or both. d) Fasciculation Fasciculation refers to involuntary twitch of muscle fibers.

Description : Which of the following terms refers to muscle tension being unchanged with muscle shortening and joint motion? a) Isotonic contraction Exercises such as swimming and bicycling are isotonic. b) ... , joint, or both. d) Fasciculation Fasciculation refers to involuntary twitch of muscle fibers.

Last Answer : a) Isotonic contraction Exercises such as swimming and bicycling are isotonic.

What is the difference between optional muscle and involuntary muscle ?

Description : What is the difference between optional muscle and involuntary muscle ?

Last Answer : 1. We can contract and stretch the optional muscles as we wish . On the other hand , we cannot contract the involuntary muscles as we wish. 2. We can move different limbs with the help of optional muscles. On ... stick to the bone. 4. The epidermis , arms , legs, etc. are made up of these muscles.

What is involuntary muscle ?

Description : What is involuntary muscle ?

Last Answer : Involuntary muscle: All the muscles of the human body which cannot be compressed , stretched or moved at will are called involuntary muscles.

What is involuntary muscle ?

Description : What is involuntary muscle ?

Last Answer : The muscles over which we have no control. That is, the muscles that do not contract as we wish are called involuntary muscles.

Heart is devoid of - (1) cardiac muscle (2) involuntary muscle (3) voluntary muscle (4) smooth muscle

Description : Heart is devoid of - (1) cardiac muscle (2) involuntary muscle (3) voluntary muscle (4) smooth muscle

Last Answer : (2) involuntary muscle Explanation: Cardiac muscle is also an involuntary muscle, found only in the heart.

The type of muscle present in our (a) heart is involuntary and unstriated smooth muscle (b) intestine is striated and involuntary (c) thigh is striated and voluntary (d) upper arm is smooth muscle and fusiform in shape.

Description : The type of muscle present in our (a) heart is involuntary and unstriated smooth muscle (b) intestine is striated and involuntary (c) thigh is striated and voluntary (d) upper arm is smooth muscle and fusiform in shape.

Last Answer : (c) thigh is striated and voluntary

Characteristics of smooth muscle fibres are (a) spindle-shaped, unbranched, nonstriated, uninucleate and involuntary (b) spindle-shaped, unbranched, unstriped, multinucleate and involuntary (c) cylindrical, unbranched, unstriped, multinucleate and involuntary (d) cylindrical, unbranched, striated, multinucleate and voluntary.

Description : Characteristics of smooth muscle fibres are (a) spindle-shaped, unbranched, nonstriated, uninucleate and involuntary (b) spindle-shaped, unbranched, unstriped, multinucleate and involuntary (c ... , multinucleate and involuntary (d) cylindrical, unbranched, striated, multinucleate and voluntary.

Last Answer : (a) spindle-shaped, unbranched, nonstriated, uninucleate and involuntary

Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it? (a) Biceps of upper arm – S m o o t h m u s c l e fibres (b) Abdominal wall – Smooth muscle (c) Iris – Involuntary smooth muscle (d) Heart wall – Involuntary unstriated muscle

Description : Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it? (a) Biceps of upper arm – S m o o t h m u s c l e fibres (b) Abdominal wall – Smooth muscle (c) Iris – Involuntary smooth muscle (d) Heart wall – Involuntary unstriated muscle

Last Answer : (b) Abdominal wall – Smooth muscle

Paresthesia is the term used to refer to a) abnormal sensations. Abnormal sensations, such as burning, tingling, and numbness, are referred to as paresthesias. b) absence of muscle movement suggesting nerve damage. The absence of muscle tone suggesting nerve damage is referred to as paralysis. c) involuntary twitch of muscle fibers. Involuntary twitch of muscle fibers is referred to as fasciculation. d) absence of muscle tone. A muscle which holds no tone is termed flaccid.

Description : Paresthesia is the term used to refer to a) abnormal sensations. Abnormal sensations, such as burning, tingling, and numbness, are referred to as paresthesias. b) absence of muscle movement suggesting ... fasciculation. d) absence of muscle tone. A muscle which holds no tone is termed flaccid.

Last Answer : a) abnormal sensations. Abnormal sensations, such as burning, tingling, and numbness, are referred to as paresthesias.

Which one of the following demonstrates the characteristics of cardiac muscle cells? (1) Involuntary and multinucleated (2) Unbranched and uninucleated (3) Cylindrical and uninucleated (4) Unbranched and involuntary

Description : Which one of the following demonstrates the characteristics of cardiac muscle cells? (1) Involuntary and multinucleated (2) Unbranched and uninucleated (3) Cylindrical and uninucleated (4) Unbranched and involuntary test

Last Answer : (3) Cylindrical and uninucleated

The muscle which is under involuntary control is: a) striated b) smooth c) skeletal

Description : The muscle which is under involuntary control is: a) striated b) smooth c) skeletal

Last Answer : ANSWER: B -- SMOOTH

The figure shows blood circulation in humans with labels A to D. Select the option which gives correct identification of label and functions of the part. (a) B - Capillary-Thin without muscle layer and wall two cell layers thick (b) C - Vein-Thin walled and blood flows in jerks/ spurts (c) D - Pulmonary vein-Takes oxygenated blood to heart, pO2 = 95 mmHg (d) A - Artery-Thick walled and blood flows evenly

Description : The figure shows blood circulation in humans with labels A to D. Select the option which gives correct identification of label and functions of the part. (a) B - Capillary-Thin without muscle layer and ... blood to heart, pO2 = 95 mmHg (d) A - Artery-Thick walled and blood flows evenly

Last Answer : (c) D - Pulmonary vein-Takes oxygenated blood to heart, pO2 = 95 mmHg

According to the sliding - filament model of muscle contraction, the molecules that moves to shorten a muscle are :-

Description : According to the sliding - filament model of muscle contraction, the molecules that moves to shorten a muscle are :-

Last Answer : According to the sliding - filament model of muscle contraction, the molecules that moves to shorten ... B. Collagen C. Myosin D. Creatine phosphate

During contraction and relaxation of striated muscle fibre the length of A band usually :-

Description : During contraction and relaxation of striated muscle fibre the length of A band usually :-

Last Answer : During contraction and relaxation of striated muscle fibre the length of A band usually :- A. ... . Increases C. Decreases D. Decreases too much

During muscle contraction (a)____ energy is converted into (b)____ energy

Description : During muscle contraction (a)____ energy is converted into (b)____ energy

Last Answer : During muscle contraction (a)____ energy is converted into (b)____ energy

Contraction of a muscle is caused by

Description : Contraction of a muscle is caused by

Last Answer : Contraction of a muscle is caused by

Muscle contraction is initiated by a signal sent by the _____

Description : Muscle contraction is initiated by a signal sent by the _____

Last Answer : Muscle contraction is initiated by a signal sent by the _____

The main source of energy during muscle contraction is____

Description : The main source of energy during muscle contraction is____

Last Answer : The main source of energy during muscle contraction is____

Mechanism of muscle contraction is best explained by____

Description : Mechanism of muscle contraction is best explained by____

Last Answer : Mechanism of muscle contraction is best explained by____

In heart cells, which of the following serves as a secondary messenger, speeding up muscle cell contraction in response to adrenaline ?

Description : In heart cells, which of the following serves as a secondary messenger, speeding up muscle cell contraction in response to adrenaline ?

Last Answer : In heart cells, which of the following serves as a secondary messenger, speeding up muscle cell contraction in ... A. cAMP B. cGMP C. GTP D. ATP

Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : The threshold stimulus is the minimum stimulus r

Description : Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : The threshold stimulus is the minimum stimulus r

Last Answer : Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : ... D. If both Assertion and Reason are false.

The following diagram (Figure 20, 35) describes the muscle contraction . Identify A to D

Description : The following diagram (Figure 20, 35) describes the muscle contraction . Identify A to D

Last Answer : The following diagram (Figure 20, 35) describes the muscle contraction . Identify A to D A. ... Actin filament, C-Silding/Rotation , D-Cross bridge,

ATP provides energy of muscle contraction by allowing for

Description : ATP provides energy of muscle contraction by allowing for

Last Answer : ATP provides energy of muscle contraction by allowing for A. Cross-bridge attachment of myosin to ... Release of `Ca^(+)` from sarcoplasmic reticulum

Immediate source of energy for muscle contraction is

Description : Immediate source of energy for muscle contraction is

Last Answer : Immediate source of energy for muscle contraction is A. Glucose B. GTP C. Creatine phosphate D. ATP

Basic unit of muscle contraction is

Description : Basic unit of muscle contraction is

Last Answer : Basic unit of muscle contraction is A. Actin B. Myosin C. Sarcomere D. Tropomyosin

Chemical ions responsible for muscle contraction are

Description : Chemical ions responsible for muscle contraction are

Last Answer : Chemical ions responsible for muscle contraction are A. `Ca^(++) and K^(+)` B. `Na^(+) and K^(+)` C. `Na^(+ ... ^(++)` D. `Ca^(++) and Mg^(++) ions `

The contraction of muscle of shortest duration is seen in

Description : The contraction of muscle of shortest duration is seen in

Last Answer : The contraction of muscle of shortest duration is seen in A. Jaws B. Eyelids C. Heart D. Intestine

The lactic acid generated during muscle contraction us flnally converted to glycogen in

Description : The lactic acid generated during muscle contraction us flnally converted to glycogen in

Last Answer : The lactic acid generated during muscle contraction us flnally converted to glycogen in A. Muscle B. Kidney C. Liver D. Pancreas

According to sliding filament theory of muscle contraction, the filament that move to shorten a muscle are

Description : According to sliding filament theory of muscle contraction, the filament that move to shorten a muscle are

Last Answer : According to sliding filament theory of muscle contraction, the filament that move to shorten a muscle ... B. Actin C. Collagen D. Creatine phosphate

In which category of muscle fibers, contraction can be regulated by acetylcholine neurotransmitter ?

Description : In which category of muscle fibers, contraction can be regulated by acetylcholine neurotransmitter ?

Last Answer : In which category of muscle fibers, contraction can be regulated by acetylcholine neurotransmitter ? A. ... . Smooth muscle fibers D. all of these

When a muscle is stretched by a contraction of the opposing muscles it is called .?

Description : When a muscle is stretched by a contraction of the opposing muscles it is called .?

Last Answer : if you're on OdysseyWare your answer would beActive stretching.............. =)

Can you control the contraction of skeletal muscle?

Description : Can you control the contraction of skeletal muscle?

Last Answer : Need answer

What is needed besides calcium for muscle contraction?

Description : What is needed besides calcium for muscle contraction?

Last Answer : Need answer

Which of the following property of prostaglandins has been utilized by chinicians in hospital for (A) Inducing fever (B) Causing inflammation (C) Effecting smooth muscle contraction (D) Disaggregation of spermatozoa

Description : Which of the following property of prostaglandins has been utilized by chinicians in hospital for (A) Inducing fever (B) Causing inflammation (C) Effecting smooth muscle contraction (D) Disaggregation of spermatozoa

Last Answer : Answer : C

The hormone required for uterine muscle contraction for child birth is (A) Progesterone (B) Estrogen (C) Oxytocin (D) Vasopressin

Description : The hormone required for uterine muscle contraction for child birth is (A) Progesterone (B) Estrogen (C) Oxytocin (D) Vasopressin

Last Answer : Answer : C

What are the functions of potassium? (A) In muscle contraction (B) Cell membrane function (C) Enzyme action (D) All of these

Description : What are the functions of potassium? (A) In muscle contraction (B) Cell membrane function (C) Enzyme action (D) All of these

Last Answer : Answer : D

The following points about microfilaments are true except (A) They form cytoskeleton with microtubules (B) They provide support and shape (C) They form intracellular conducting channels (D) They are involved in muscle cell contraction

Description : The following points about microfilaments are true except (A) They form cytoskeleton with microtubules (B) They provide support and shape (C) They form intracellular conducting channels (D) They are involved in muscle cell contraction

Last Answer : C

Histamine (a) May be released from mast cells by a number of therapeutic agents (b) Causes sedation (c) Decreases the force of contraction of ventricular muscle (d) Can cause strong contractions of the gravid human uterus

Description : Histamine (a) May be released from mast cells by a number of therapeutic agents (b) Causes sedation (c) Decreases the force of contraction of ventricular muscle (d) Can cause strong contractions of the gravid human uterus

Last Answer : Ans: D

In gastrointestinal tract, serotonin causes (a) Contraction of gastrointestinal muscles (b) Decreased muscle tone (c) Decreased peristalsis (d) All of the above

Description : In gastrointestinal tract, serotonin causes (a) Contraction of gastrointestinal muscles (b) Decreased muscle tone (c) Decreased peristalsis (d) All of the above

Last Answer : Ans: A

What are some examples of movement created by the contraction of sarcomeres of the muscle cells ?

Description : What are some examples of movement created by the contraction of sarcomeres of the muscle cells ?

Last Answer : The handling of a cup of coffee, the peristaltic movements of the bowels, the cardiac beats and even a smile are examples of movement created by contraction of the sarcomeres of the muscle cells. This contraction is a type of cell movement.

One of the following statements about muscular responses is not true. Choose that one (a) A muscle fibre contracts in all-or-none fashion (b) There is a slight latent period that occurs between when the stimulus arrives at the muscle and when a muscle contracts. (c) Muscles will add motor units to a contraction, increasing the overall force of contraction (d) When a person is fully at rest, none of the muscles are contracting in the body

Description : One of the following statements about muscular responses is not true. Choose that one (a) A muscle fibre contracts in all-or-none fashion (b) There is a slight latent period that occurs between when ... contraction (d) When a person is fully at rest, none of the muscles are contracting in the body

Last Answer : Ans:(d)

Why can cardiac muscle fibres contract for longer periods than skeletal fibres? (a) Cardiac muscle is self-excitatory (b) Extracellular calcium partially controls the strength (and length) of contraction (c) Cisternae of T-tubules are more developed in cardiac muscle (d) Cardiac muscle is uninucleate rather than multinucleate

Description : Why can cardiac muscle fibres contract for longer periods than skeletal fibres? (a) Cardiac muscle is self-excitatory (b) Extracellular calcium partially controls the strength (and length) ... tubules are more developed in cardiac muscle (d) Cardiac muscle is uninucleate rather than multinucleate

Last Answer : Ans:(a)

"Sodium Pump" operates in - (1) Muscle contraction (2) Heart beat (3) Nerve impulse (4) None of the above

Description : "Sodium Pump" operates in - (1) Muscle contraction (2) Heart beat (3) Nerve impulse (4) None of the above

Last Answer : (3) Nerve impulse Explanation: Na+/K+-ATPase (also known as sodium-potassium pump) is an enzyme located in the plasma them brane of virtually every human cell and is common to all cellular ... are voltagegated, which means that they can open and close depending on the voltage across the membrane.

The following are true: a. Kirschman's law: the greatest contrast in colour is seen when the luminosity differnece is small b. Emmbert's law: the perceived size of an object varies in proportion to the distance of the surface on which it is projected c. Hering's law: the contraction of a muscle is accompanied by simultaneous and proportional relaxation of the antagonist d. Troxler's phenomenon: an image in the periphery of the retina tends to fade or disappear during steady fixation of another objec

Description : The following are true: a. Kirschman's law: the greatest contrast in colour is seen when the luminosity differnece is small b. Emmbert's law: the perceived size of an object varies in ... image in the periphery of the retina tends to fade or disappear during steady fixation of another objec

Last Answer : Troxler's phenomenon: an image in the periphery of the retina tends to fade or disappear during steady fixation of another objec

The following are true about potassium: a. hypokalaemia decreases the time of cardiac repolarization b. hyperkalaemia decreases cardiac contraction c. hyperkalaemia relaxes vascular smooth muscle d. all

Description : The following are true about potassium: a. hypokalaemia decreases the time of cardiac repolarization b. hyperkalaemia decreases cardiac contraction c. hyperkalaemia relaxes vascular smooth muscle d. all

Last Answer : all

Stimulation of the cholinergic pathway results in: a. ciliary muscle contraction b. a decrease in atrial contractilityc. gall bladder contraction d. all above

Description : Stimulation of the cholinergic pathway results in: a. ciliary muscle contraction b. a decrease in atrial contractility c. gall bladder contraction d. all above

Last Answer : all above

The following are true about the smooth muscle cells: a. presence of a striated appearance b. do not contain actin and myosin c. spontaneous muscle contraction d. mitochondria are absent

Description : The following are true about the smooth muscle cells: a. presence of a striated appearance b. do not contain actin and myosin c. spontaneous muscle contraction d. mitochondria are absent

Last Answer : spontaneous muscle contraction

The effect of sympathetic nervous system include: a. contraction of the bladder detrusor muscle b pupillary dilatationc. reduced gastrointestinal motility d. constricts bronchiole smooth muscle

Description : The effect of sympathetic nervous system include: a. contraction of the bladder detrusor muscle b pupillary dilatation c. reduced gastrointestinal motility d. constricts bronchiole smooth muscle

Last Answer : pupillary dilatation

The sequence of events in muscle contraction a. action potential depolarise the T-tubules b. depolarisation of T-tubules release calcium from sarcoplasmic reticulum c. calcium binds to the troponin-tropomycin complex d. all above

Description : The sequence of events in muscle contraction a. action potential depolarise the T-tubules b. depolarisation of T-tubules release calcium from sarcoplasmic reticulum c. calcium binds to the troponin-tropomycin complex d. all above

Last Answer : all above