State the function of cardiac muscles.

State the function of cardiac muscles.
by

1 Answer

Answer :

Cardiac muscles are responsible for the contraction and relaxation of the heart. It makes

the heart beat continuously throughout one’s life.
by

Related questions

9. Give three features of cardiac muscles. -Science

Description : 9. Give three features of cardiac muscles. -Science

Last Answer : The cardiac muscles are specialized tissues that are evolved to pump blood throughout the body. The following are the features of the cardiac muscles: ➢ They are cylindrical in shape. ➢ Striated muscle fibers. ➢ They are uninucleated and branched. ➢ These muscles are involuntary in nature.

Mention the characteristics of cardiac muscles.

Description : Mention the characteristics of cardiac muscles.

Last Answer : a) Cardiac muscles are composed of branched fibres that have stripes or bands. b) The branches are connected with one another in a cris-cross form. c) They are involuntary muscles d) They do not fatigue easily. e) They are found only in the heart

The autonomic nervous system innervates all of these except? A. Cardiac muscles B. Skeletal muscles (Answer) C. Smooth muscles D. none

Description : The autonomic nervous system innervates all of these except? A. Cardiac muscles B. Skeletal muscles (Answer) C. Smooth muscles D. none

Last Answer : B. Skeletal muscles (Answer)

Characteristics of cardiac muscles are that they `:-`

Description : Characteristics of cardiac muscles are that they `:-`

Last Answer : Characteristics of cardiac muscles are that they `:-` A. Contract quickly and get fatigued B. ... fatigued D. Contract slowly and do not get fatigued

Are cardiac muscles considered to be smooth muscles?

Description : Are cardiac muscles considered to be smooth muscles?

Last Answer : No, they are not. Cardiac muscle is a type of involuntary striated muscle found only in the walls of the heart.This is a specialized muscle that, while similar in some fundamental ways to ... muscle automaticity. Meaning that some of the cells can beat on their own without any nerve stimulation.

Hypocalcaemia affects (A) Skeletal muslces (B) Smooth muscles (C) Cardiac muscles (D) Skeletal muscles + smooth muscles + cardiac muscles

Description : Hypocalcaemia affects (A) Skeletal muslces (B) Smooth muscles (C) Cardiac muscles (D) Skeletal muscles + smooth muscles + cardiac muscles

Last Answer : Answer : D

Enhanced automaticity in cardiac cells may occur because of (a) ß-adrenergic stimulation (b) Hypokalemia (c) Mechanical stretch of cardiac muscles (d) All of the above

Description : Enhanced automaticity in cardiac cells may occur because of (a) ß-adrenergic stimulation (b) Hypokalemia (c) Mechanical stretch of cardiac muscles (d) All of the above

Last Answer : Ans: D

People consuming alcohol in heavy quantities generally die of – (1) liver or stomach cancer (2) weakening of heart muscles leading to cardiac arrest (3) blood cancer (4) Cirrhosis

Description : People consuming alcohol in heavy quantities generally die of – (1) liver or stomach cancer (2) weakening of heart muscles leading to cardiac arrest (3) blood cancer (4) Cirrhosis

Last Answer : (4) Cirrhosis Explanation: Cirrhosis is a condition in which the liver does not function properly due to longterm damage. This damage is characterized by the replacement of normal liver tissue by scar tissue.

Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Description : Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Last Answer : (2) cirrhosis Explanation: Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.

Under more functional demand, cardiac muscles undergo C A. Atrophy B. Hyperplasia C. Hypertrophy D. None of these

Description : Under more functional demand, cardiac muscles undergo C A. Atrophy B. Hyperplasia C. Hypertrophy D. None of these

Last Answer : Hypertrophy

Identify the tissue shown in the diagram and match with its characteristics and its location. (a) Smooth muscles, show branching, found in the wall of the heart(b) Cardiac muscles, unbranched muscles, found in the walls of the heart (c) Striated muscles, tapering at both-ends, attached with the bones of the ribs (d) Skeletal muscles show striations and are closely attached with the bones of the limbs

Description : Identify the tissue shown in the diagram and match with its characteristics and its location. (a) Smooth muscles, show branching, found in the wall of the heart (b) Cardiac muscles, unbranched ... the ribs (d) Skeletal muscles show striations and are closely attached with the bones of the limbs

Last Answer : (d) Skeletal muscles show striations and are closely attached with the bones of the limbs

Give three features of cardiac muscles.

Description : Give three features of cardiac muscles.

Last Answer : 1. Cardiac muscles of the heart show rhythmic contraction and relaxation throughout life. 2. These are involuntary muscles and form the walls of the heart. 3. They are cylindrical, branched and uninucleate. 4. They show characteristics of both striated and unstriated muscles.

Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Description : Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Last Answer : cirrhosis

What are striped muscles? State their function.

Description : What are striped muscles? State their function.

Last Answer : The muscles that are made up elongated, unbranched cylindrical fibres with stripes or striations or cross bands are called striped muscles.

The cardiac pacemaker in a patient fails to function normally. The doctors find that an artifical pacemaker is to be grafted in him. It is likely that

Description : The cardiac pacemaker in a patient fails to function normally. The doctors find that an artifical pacemaker is to be grafted in him. It is likely that

Last Answer : The cardiac pacemaker in a patient fails to function normally. The doctors find that an ... node C. Atrioventricular node D. Atroventricular bundle

Which of the following statement(s) is/are true concerning the relationship between cardiac function and effective blood volume? a. A pulmonary capillary wedge pressure of 5–10 rules out fluid overload as a cause of pulmonary edema b. A shift to the right in the Frank-Starling curve is associated with compromised cardiac function c. Dilutional anemia may contribute to tachycardia even though blood volume and filling pressures are normal d. The sole purpose of a pulmonary artery catheter is to measure pulmonary artery pressure and cardiac output

Description : Which of the following statement(s) is/are true concerning the relationship between cardiac function and effective blood volume? a. A pulmonary capillary wedge pressure of 5-10 rules out ... sole purpose of a pulmonary artery catheter is to measure pulmonary artery pressure and cardiac output

Last Answer : Answer: b, c Although physical findings are often adequate to establish a diagnosis and institute management of cardiac failure, direct measurement of filling pressures of the right heart ( ... blood volume is normal, filling pressures are normal, and total body extracellular fluid is excessive

Which of the following statement(s) is/are true concerning pharmacologic agents used in the treatment of shock? a. The primary difference between dopamine and dobutamine is the absence of significant a adrenergic activity b. The renal and mesenteric vasoconstrictive effects of norepinephrine complicate and sometimes restrict its use c. The apparent paradoxical use of vasodilators, such as nitroprusside, in shock is indicated as a means to augment cardiac function d. Isoproterenol with its potent b-adrenergic effect, is a particularly useful agent in the treatment of all forms of shock

Description : Which of the following statement(s) is/are true concerning pharmacologic agents used in the treatment of shock? a. The primary difference between dopamine and dobutamine is the absence of significant a ... b-adrenergic effect, is a particularly useful agent in the treatment of all forms of shock

Last Answer : Answer: a, b, c Therapeutic adjustments of intravascular volume (preload) and systemic vascular resistance (afterload) form the basis of the treatment strategies for all ... careful constant monitoring of arterial pressure and repeated hemodynamic measurements with a pulmonary artery catheter

Which of the following statement(s) is/are correct concerning the cardiovascular response to shock? a. Changes in cardiac contractile function shift the Frank Starling curve up and down b. Venoconstriction from skeletal muscle is a significant contributor to the restoration of blood volume with shock c. Arterial vasoconstriction affects all vascular beds equally d. The total circulating blood volume is equally split between the arterial and venous system

Description : Which of the following statement(s) is/are correct concerning the cardiovascular response to shock? a. Changes in cardiac contractile function shift the Frank Starling curve up and down b. ... d. The total circulating blood volume is equally split between the arterial and venous system

Last Answer : Answer: a Central in the general cardiovascular response to shock is the action of the heart itself. The principle determinants of cardiac function in the normal heart are the volume of blood ... Blood flow to the skin is sacrificed early, followed by that to the kidneys and splanchnic viscera

The cardiac muscarinic receptors (a) Are of the M1 subtype (b) Are of the M2 subtype (c) Are selectively blocked by pirenzepine (d) Function through the PIP2 ? IP3/DAG pathway

Description : The cardiac muscarinic receptors (a) Are of the M1 subtype (b) Are of the M2 subtype (c) Are selectively blocked by pirenzepine (d) Function through the PIP2 ? IP3/DAG pathway

Last Answer : Ans: B

The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will be grafted at the site of (a) atrioventricular bundle (b) Purkinje system (c) sinoatrial node (d) atrioventricular node.

Description : The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will be grafted at the site of (a) atrioventricular bundle (b) Purkinje system (c) sinoatrial node (d) atrioventricular node.

Last Answer : (b) Purkinje system

The cardiac muscarinic receptors: A. Are of the M1 subtype B. Are of the M2 subtype C. Are selectively blocked by pirenzepine D. Function through the PIP2 → IP3/DAG pathway

Description : The cardiac muscarinic receptors: A. Are of the M1 subtype B. Are of the M2 subtype C. Are selectively blocked by pirenzepine D. Function through the PIP2 → IP3/DAG pathway

Last Answer : B. Are of the M2 subtype

The cardiac muscarinic receptors: A. Are of the M1 subtype B. Are of the M2 subtype C. Are selectively blocked by pirenzepine D. Function through the PIP2 → IP3/DAG pathway

Description : The cardiac muscarinic receptors: A. Are of the M1 subtype B. Are of the M2 subtype C. Are selectively blocked by pirenzepine D. Function through the PIP2 → IP3/DAG pathway

Last Answer : B. Are of the M2 subtype

What is the function of a tendon? A A. To link muscles to bones B. To bind bone cells close together C. To link muscles to ligaments D. To link bones to bones

Description : What is the function of a tendon? A A. To link muscles to bones B. To bind bone cells close together C. To link muscles to ligaments D. To link bones to bones

Last Answer : To link muscles to bones

What is the function of a tendon? A A. To link muscles to bones B. To bind bone cells close together C. To link muscles to ligaments D. To link bones to bones

Description : What is the function of a tendon? A A. To link muscles to bones B. To bind bone cells close together C. To link muscles to ligaments D. To link bones to bones

Last Answer : To link muscles to bone

Match the source gland with its respective hormone and function and select the correct option. Source Hormone Function gland (a) Anterior Oxytocin Contraction of uterus pituitary muscles during child birth (b) Posterior Vasopressin Stimulates pituitary reabsorption of water in the distal tubules in the nephron (c) Corpus Estrogen Supports pregnancy luteum (d) Thyroid Thyroxine Regulates blood calcium level

Description : Match the source gland with its respective hormone and function and select the correct option. Source Hormone Function gland (a) Anterior Oxytocin Contraction of uterus pituitary muscles during ... (c) Corpus Estrogen Supports pregnancy luteum (d) Thyroid Thyroxine Regulates blood calcium level

Last Answer : (b) Posterior Vasopressin Stimulates pituitary reabsorption of water in the distal tubules in the nephron

One function of parasympathetic nervous system is (a) contraction of hair muscles (b) stimulation of sweat glands (c) acceleration of heart beat (d) constriction of pupil.

Description : One function of parasympathetic nervous system is (a) contraction of hair muscles (b) stimulation of sweat glands (c) acceleration of heart beat (d) constriction of pupil.

Last Answer : (d) constriction of pupil.

The four sketches (A, B, C and D) given below, represent four different types of animal tissues. Which one of these is correctly identified in the options given, along with its correct location and function? (A) (B) (C) (D) Tissue Location Function (a) (B) Glandular Intestine Secretion epithelium (b) (C) Collagen Cartilage Attach skeletal fibres muscles to bones(c) (D) Smooth Heart Heart muscle contraction tissue (d) (A) Columnar Nephron Secretion epithelium and absorption

Description : The four sketches (A, B, C and D) given below, represent four different types of animal tissues. Which one of these is correctly identified in the options given, along with its ... Smooth Heart Heart muscle contraction tissue (d) (A) Columnar Nephron Secretion epithelium and absorption

Last Answer : (a) (B) Glandular Intestine Secretion epithelium