What is vena cava? Which type of blood circulates within the vena cava?

What is vena cava? Which type of blood circulates within the vena cava?
by

1 Answer

Answer :

The vena cava are either of two large veins that debouch into the right atrium. The superior vena cava drains all blood that comes from the head, the superior limbs, the neck and the superior portion of the trunk. The inferior vena cava carries blood drained from the inferior portion of the trunk and the inferior limbs. Venous blood circulates within the vena cava. The Circulatory System - Image Diversity: vena cava
by
selected by

Related questions

Which vein brings clean blood from the lungs into the heart? (1) Renal Vein (2) Pulmonary Vein (3) Vena Cava (4) Hepatic Vein

Description : Which vein brings clean blood from the lungs into the heart? (1) Renal Vein (2) Pulmonary Vein (3) Vena Cava (4) Hepatic Vein

Last Answer : (2) Pulmonary Vein Explanation: The pulmonary veins are a set of veins that deliver clean oxygenated blood from the lungs to the heart. It brings oxygen-rich blood to the left atrium. Systemic veins deliver deoxygenated blood to the heart.

Which among the following carries impure blood to human heart? (1) Aorta (2) Pulmonary vein (3) Pulmonary arteries (4) Vena Cava

Description : Which among the following carries impure blood to human heart? (1) Aorta (2) Pulmonary vein (3) Pulmonary arteries (4) Vena Cava

Last Answer : (3) Pulmonary arteries Explanation: A pulmonary artery is an artery in the pulmonary circulation that carries deoxygenated blood from the right side of the heart to the lungs.

The given figure shows schematic plan of blood circulation in humans with labels A to D. Identify the label and give its functions(a) C - Vena cava - Takes blood from body parts to right auricle, pCO2 = 45 mm Hg (b) D - Dorsal aorta - Takes blood from heart to body parts, pO2 = 95 mm Hg (c) A - Pulmonary vein - Takes impure blood from body parts, pO2 = 60 mm Hg (d) B - Pulmonary artery - Takes blood from heart to lungs, pO2 = 90 mm Hg.

Description : The given figure shows schematic plan of blood circulation in humans with labels A to D. Identify the label and give its functions. (a) C - Vena cava - Takes blood from body parts to right auricle, pCO2 = 45 ... 60 mm Hg (d) B - Pulmonary artery - Takes blood from heart to lungs, pO2 = 90 mm Hg

Last Answer : (a) C - Vena cava - Takes blood from body parts to right auricle, pCO2 = 45 mm Hg

Which vein brings clean blood from the lungs into the heart ? (1) Renal Vein (2) Pulmonary Vein (3) Vena Cava (4) Hepatic Vein

Description : Which vein brings clean blood from the lungs into the heart ? (1) Renal Vein (2) Pulmonary Vein (3) Vena Cava (4) Hepatic Vein

Last Answer : Pulmonary Vein

Which of the following statement(s) concerning intravenous nutritional support is/are true? a. Concentrations of glucose no higher than 5% should be used to avoid peripheral vein sclerosis b. A major disadvantage of the peripheral technique is limited caloric delivery c. If total parenteral nutrition is required, access to the superior vena cava via the external jugular vein is the most suitable site d. Venous thrombosis is an uncommon complication for long-term central vein catheterization

Description : Which of the following statement(s) concerning intravenous nutritional support is/are true? a. Concentrations of glucose no higher than 5% should be used to avoid peripheral vein sclerosis ... suitable site d. Venous thrombosis is an uncommon complication for long-term central vein catheterization

Last Answer : Answer: b Although peripheral access can be used for intravenous nutrition, the major disadvantage of this technique is limited caloric delivery to meet catabolic demands within tolerated fluid ... studies that use phlebography or radionucleotide venography indicate the incidence is as high as 35%

Which of the following is the longest vein in the human body? (1) Trochlear (2) Inferior vena cava (3) Saphenous vein (4) Trigeminal

Description : Which of the following is the longest vein in the human body? (1) Trochlear (2) Inferior vena cava (3) Saphenous vein (4) Trigeminal

Last Answer : (3) Saphenous vein Explanation: The great saphenous vein, the major superficial vein of the medial leg and thigh, is the longest vein in the human body. It extends from the top of the foot to ... . It plays an important role in returning blood from the superficial tissues of the leg to the heart.

The large startery in human body is – (1) Aorta (2) Capillaiy (3) Vena cava (4) Pulmonary vein

Description : The large startery in human body is – (1) Aorta (2) Capillaiy (3) Vena cava (4) Pulmonary vein

Last Answer : (1) Aorta Explanation: The aorta is the largest artery of the human body. It is an artery that directly arises from the heart itself and descends through the thorax and into the abdomen. All the arteries of the body, save the pulmonary arteries, stem from the aorta or one of its main branches.

The largest artery in human body is (1) Aorta (2) Capillary (3) Vena cava (4) Pulmonary vein

Description : The largest artery in human body is (1) Aorta (2) Capillary (3) Vena cava (4) Pulmonary vein

Last Answer : Aorta

Which of the following is the longest vein in the human body ? (1) Trochlear (2) Inferior vena cava (3) Saphenous vein (4) Trigeminal

Description : Which of the following is the longest vein in the human body ? (1) Trochlear (2) Inferior vena cava (3) Saphenous vein (4) Trigeminal

Last Answer : Saphenous vein

what happens to the blood as it circulates out of the right side of the heart

Description : what happens to the blood as it circulates out of the right side of the heart

Last Answer : Need Answer

Cholesterol circulates in blood stream chiefly as (A) Free cholesterol (B) Ester cholesterol (C) Low density lipoproteins (D) Low density lipoproteins and high density lipoproteins

Description : Cholesterol circulates in blood stream chiefly as (A) Free cholesterol (B) Ester cholesterol (C) Low density lipoproteins (D) Low density lipoproteins and high density lipoproteins

Last Answer : Answer : D

Which of the following statements regarding neutrophils are true? a. The neutrophil undergoes final maturation after release into the circulation b. Patients with chronic granulomatous disease have a defective neutrophil H-oxidase system c. Neutrophil killing of bacteria is achieved by oxidants, proteinases and cationic proteins d. The normal human neutrophil circulates in the blood for 7–10 days

Description : Which of the following statements regarding neutrophils are true? a. The neutrophil undergoes final maturation after release into the circulation b. Patients with chronic granulomatous disease have a defective ... proteins d. The normal human neutrophil circulates in the blood for 7-10 days

Last Answer : Answer: b, c The neutrophil is a migratory phagocytic cell that defends the host against bacteria and eliminates necrotic tissue. The neutrophil matures in the bone marrow and is ... phagocytose bacteria, they are unable to kill the intracellular microbes and chronic, unresolved infections result

Which ONE of the following is true concerning Antidiuretic hormone(ADH)? 1) Carbamazepine potentiates it's release 2) Ethanol potentiates it's release 3) It circulates in the blood bound to neurohypophysin 4) It is a cyclic octapeptide 5) It is synthesised in the posterior pituitary

Description : Which ONE of the following is true concerning Antidiuretic hormone(ADH)? 1) Carbamazepine potentiates it's release 2) Ethanol potentiates it's release 3) It circulates in the blood bound to neurohypophysin 4) It is a cyclic octapeptide 5) It is synthesised in the posterior pituitary

Last Answer : Answers-1 ADH is a nonapeptide manufactured in the paraventricular and supra-optic nuclei of the hypothalamus and released from the posterior pituitary. It acts on the collecting ducts improving ... agents such as thiazides and SSRIs may potentiate its release. Ethanol usually inhibits release.

The closed circulatory system is more efficient. Since blood circulates only inside blood vessels it can do it with more pressure reaching farther distances between the organs where hematosis happens and the peripheral tissues. In addition the circulatory speed also heightens making possible more oxygen supply to great consuming tissues, like the muscle tissues that then can perform faster movements. Animals with an open circulatory system (with the exception of insects that do gas exchange independently from the circulation) are generally slower and have a low metabolic rate.

Description : The closed circulatory system is more efficient. Since blood circulates only inside blood vessels it can do it with more pressure reaching farther distances between the organs where hematosis ... exchange independently from the circulation) are generally slower and have a low metabolic rate.

Last Answer : What is the difference between octopuses and mussels regarding their circulatory systems?

A closed circulatory system is one in which blood circulates only inside blood vessels. For this reason the blood pressure is higher in animals with closed circulatory system. The cellularity of the blood is also higher with many specific blood cells. The closed circulatory system is a feature of annelids, cephalopod molluscs and vertebrates. The Circulatory System - Image Diversity: closed circulatory system

Description : A closed circulatory system is one in which blood circulates only inside blood vessels. For this reason the blood pressure is higher in animals with closed circulatory system. The ... annelids, cephalopod molluscs and vertebrates. The Circulatory System - Image Diversity: closed circulatory system

Last Answer : What are the advantages of the closed circulatory system over the open circulatory system?

Who first discovered how blood circulates in the human body? A. Edward Jenner B. Joseph Lister C. William Harvey (Answer) D. Gregor Mendel

Description : Who first discovered how blood circulates in the human body? A. Edward Jenner B. Joseph Lister C. William Harvey (Answer) D. Gregor Mendel

Last Answer : C. William Harvey (Answer)

A current of `0.1 A` circulates around a coil of 100 turns and having a radius equal to `5 cm`. The magnetic field set up at the centre of the coil is

Description : A current of `0.1 A` circulates around a coil of 100 turns and having a radius equal to `5 cm`. The magnetic field set up at the centre of the coil is

Last Answer : A current of `0.1 A` circulates around a coil of 100 turns and having a radius equal to `5 cm`. The magnetic ... C. `4pixx10^(-5)T` D. `2pixx10^(-5)T`

What veins are join to form the vein cava?

Description : What veins are join to form the vein cava?

Last Answer : The left and right common iliac veins join to form the vena cava.

Inthe _________ method, a special packet called a ______ circulates through the ring. A) reservation: control frame B) polling: poll request C) token passing: token D) none of the above

Description : Inthe _________ method, a special packet called a ______ circulates through the ring. A) reservation: control frame B) polling: poll request C) token passing: token D) none of the above

Last Answer : token passing: token

The air around a high pressure area circulates: w) clockwise in the Northern Hemisphere x) counterclockwise in the Northern Hemisphere y) clockwise in the Southern Hemisphere z) in either direction regardless of hemisphere

Description : The air around a high pressure area circulates: w) clockwise in the Northern Hemisphere x) counterclockwise in the Northern Hemisphere y) clockwise in the Southern Hemisphere z) in either direction regardless of hemisphere

Last Answer : ANSWER: W -- CLOCKWISE IN THE NORTHERN HEMISPHERE 

Location of vena-contracta in an orificemeter does not depend upon the (A) Type of orifice (B) Density, viscosity & compressibility of the fluid (C) Ratio of pipe diameter to orifice diameter (D) Pipe roughness

Description : Location of vena-contracta in an orificemeter does not depend upon the (A) Type of orifice (B) Density, viscosity & compressibility of the fluid (C) Ratio of pipe diameter to orifice diameter (D) Pipe roughness

Last Answer : (A) Type of orifice

What is Vena Pro medicine ?

Description : What is Vena Pro medicine ?

Last Answer : Vena Pro medicine is a medicine for obesity, but this kind of medicine, even if it is temporarily obese, is a very harmful type of cancer for the body.

Vena-contracta pressure tapping is at a distance __________ from the position of an orificemeter fitted in a pipe of internal diameter 'd' (A) d (B) 0.5 d (C) 2d (D) 4d

Description : Vena-contracta pressure tapping is at a distance __________ from the position of an orificemeter fitted in a pipe of internal diameter 'd' (A) d (B) 0.5 d (C) 2d (D) 4d

Last Answer : (B) 0.5 d

Cd , Cc and Cv are related (for flow through an orifice) as (where, Cd = discharge co-efficient, Cc = co-efficient of contraction = (area of jet at vena￾contracta/area of opening), Cv = co-efficient of velocity = (actual velocity at vena-contracta/theoretical velocity). (A) Cd = Cc /Cv (B) Cd = Cc .Cv (C) Cd = Cv / Cc (D) None of these

Description : Cd , Cc and Cv are related (for flow through an orifice) as (where, Cd = discharge co-efficient, Cc = co-efficient of contraction = (area of jet at vena￾contracta/area of opening), Cv = co-efficient of velocity = (actual velocity ... A) Cd = Cc /Cv (B) Cd = Cc .Cv (C) Cd = Cv / Cc (D) None of these

Last Answer : (B) Cd = Cc .Cv

What is the co-efficient of contraction, if a fluid jet discharging from a 50 mm diameter orifice has a 40 mm diameter at its vena-contracta? (A) 0.64 (B) 1.65 (C) 0.32 (D) 0.94

Description : What is the co-efficient of contraction, if a fluid jet discharging from a 50 mm diameter orifice has a 40 mm diameter at its vena-contracta? (A) 0.64 (B) 1.65 (C) 0.32 (D) 0.94

Last Answer : (A) 0.64

Vena-contracta formed during flow of a liquid through an orificemeter has (A) Minimum liquid cross-section (B) More diameter compared to orifice diameter (C) Minimum velocity of fluid stream (D) None of these

Description : Vena-contracta formed during flow of a liquid through an orificemeter has (A) Minimum liquid cross-section (B) More diameter compared to orifice diameter (C) Minimum velocity of fluid stream (D) None of these

Last Answer : (A) Minimum liquid cross-section

The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by(A) Cv. √(2gH)(B) Cc. √(2gH)(C) Cd. √(2gH)(D) Cv. Va

Description : The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by (A) Cv . √(2gH) (B) Cc . √(2gH) (C) Cd . √(2gH) (D) Cv . Va

Last Answer : (A) Cv . √(2gH)

01. In a convergent mouthpiece, the absolute pressure head at vena contracta is the same as that of the atmosphere. A) True B) False

Description : 01. In a convergent mouthpiece, the absolute pressure head at vena contracta is the same as that of the atmosphere. A) True B) False

Last Answer : A

10. In an external or internal mouthpiece, the absolute pressure head at vena contracta is zero when atmospheric pressure head is 10.3 m of water. A) Correct B) Incorrect

Description : 10. In an external or internal mouthpiece, the absolute pressure head at vena contracta is zero when atmospheric pressure head is 10.3 m of water. A) Correct B) Incorrect

Last Answer : A

In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice. (A) Equal to (B) One-fourth (C) One-third (D) One-half

Description : In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice. (A) Equal to (B) One-fourth (C) One-third (D) One-half

Last Answer : Answer: Option B

A point, in a compressible flow where the velocity of fluid is zero, is called (A) Critical point (B) Vena contractaC) Stagnation point (D) None of these

Description : A point, in a compressible flow where the velocity of fluid is zero, is called (A) Critical point (B) Vena contracta C) Stagnation point (D) None of these

Last Answer : Answer: Option C

Coefficient of contraction is the ratio of (A) Actual velocity of jet at vena contracta to the theoretical velocity (B) Loss of head in the orifice to the head of water available at the exit of the orifice (C) Loss of head in the orifice to the head of water available at the exit of the orifice (D) Area of jet at vena-contracta to the area of orifice

Description : Coefficient of contraction is the ratio of (A) Actual velocity of jet at vena contracta to the theoretical velocity (B) Loss of head in the orifice to the head of water available at the exit of the ... available at the exit of the orifice (D) Area of jet at vena-contracta to the area of orifice

Last Answer : Answer: Option D

In an external mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to 0.89 times the height of the liquid, above the vena contracta. (A) Less than (B) More than (C) Equal to (D) None of these

Description : In an external mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to 0.89 times the height of the liquid, above the vena contracta. (A) Less than (B) More than (C) Equal to (D) None of these

Last Answer : Answer: Option A

In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta. (A) Less than (B) More than (C) Equal to (D) None of these

Description : In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta. (A) Less than (B) More than (C) Equal to (D) None of these

Last Answer : Answer: Option A

Coefficient of resistance is the ratio of (A) Actual velocity of jet at vena-contracta to the theoretical velocity (B) Area of jet at vena-contracta to the area of orifice (C) Loss of head in the orifice to the head of water available at the exit of the orifice (D) Actual discharge through an orifice to the theoretical discharge

Description : Coefficient of resistance is the ratio of (A) Actual velocity of jet at vena-contracta to the theoretical velocity (B) Area of jet at vena-contracta to the area of orifice (C) Loss ... available at the exit of the orifice (D) Actual discharge through an orifice to the theoretical discharge

Last Answer : Answer: Option C

A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is (A) 0.46 (B) 0.64 (C) 0.78 (D) 0.87

Description : A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is (A) 0.46 (B) 0.64 (C) 0.78 (D) 0.87

Last Answer : Answer: Option B

The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta) (A) 2gH (B) H × g) (C) 2g × H (D) 2gh)

Description : The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta) (A) 2gH (B) H × g) (C) 2g × H (D) 2gh)

Last Answer : Answer: Option D

Coefficient of velocity is defined as the ratio of (A) Actual velocity of jet at vena contracta to the theoretical velocity (B) Area of jet at vena contracta to the area of orifice (C) Actual discharge through an orifice to the theoretical discharge (D) None of the above

Description : Coefficient of velocity is defined as the ratio of (A) Actual velocity of jet at vena contracta to the theoretical velocity (B) Area of jet at vena contracta to the area of orifice (C) Actual discharge through an orifice to the theoretical discharge (D) None of the above

Last Answer : Answer: Option A