question about anatomy true and false questions answers 1. Ventricles have thicker, more muscular walls than...

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Medical Sciences

question about anatomy true and false questions answers

1. Ventricles have thicker, more muscular walls than atria.

True

False

2.

Conduction myofibers comprise large powerful muscles such as thebiceps brachii.

True

False

3.

The sound of a heartbeat is caused by elastic recoil of largearteries.

True

False

4.

The pulse is the result of the valves closing.

True

False

5.

A surfactant is a chemical that allows water to spread fartherover a surface.

True

False

6.

The myenteric plexus innervates two layers of themuscularis.

True

False

7. Brunner’s glands help neutralize stomach acid when it entersthe small intestine.

True

False

8.

The falciform ligament partitions the liver into right and leftlobes.

True

False

9.

The superior pharyngeal constrictors are all smooth muscletissue.

True

False

10.

The inferior pharyngeal constrictors are mostly skeletal muscletissue.

True

False

11.

Kuppfer cells phagocytize stuff in the liver.

True

False

12.

Fetal hearts shunt the blood from the right atrium directly tothe left atrium.

True

False

13.

The pH of the duodenum is slightly acidic.

Group of answer choices

True

False

14.

The esophagus is lined with non-keratinized stratified squamousepithelium.

Group of answer choices

True

False

15. The greater omentum attaches to the greater curvature of thestomach.

True

False

16.

The liver produces bile fluid from old worn out red bloodcells.

True

False

17

The vermiform appendix may act as a refuge for beneficialintestinal flora.

True

False

18.

Blood flows from the liver back to the heart through the hepaticportal vein.

True

False

Answer & Explanation Solved by verified expert
3.6 Ratings (631 Votes)
1 true The ventricles of the heart have thicker muscular walls than the atria This is because blood is pumped out of the heart at greater pressure from these chambers compared to the atria This is due to the higher forces needed to pump blood through the systemic circuit around the body compared to the pulmonary circuit 2 false A myofibril also known as a muscle fibril is a basic rodlike unit of a muscle cell Muscles are composed of tubular cells called myocytes known as muscle fibers in striated muscle and these cells in turn contain many chains of myofibrils 3 false Closure of the heart valves is associated with an audible sound called the heartbeat The first sound occurs when the mitral and tricuspid valves close the second when the pulmonary and aortic semilunar valves close These characteristic heart sounds have been found to be caused by the vibration 4 false Pulse rhythmic dilation of an artery generated by the opening and closing of the aortic valve in the heart A pulse can be felt by    See Answer
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