Question

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 the biceps brachii.

True

False

3.

The sound of a heartbeat is caused by elastic recoil of large arteries.

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 farther over a surface.

True

False

6.

The myenteric plexus innervates two layers of the muscularis.

True

False

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

True

False

8.

The falciform ligament partitions the liver into right and left lobes.

True

False

9.

The superior pharyngeal constrictors are all smooth muscle tissue.

True

False

10.

The inferior pharyngeal constrictors are mostly skeletal muscle tissue.

True

False

11.

Kuppfer cells phagocytize stuff in the liver.

True

False

12.

Fetal hearts shunt the blood from the right atrium directly to the 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 squamous epithelium.

Group of answer choices

True

False

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

True

False

16.

The liver produces bile fluid from old worn out red blood cells.

True

False

17

The vermiform appendix may act as a refuge for beneficial intestinal flora.

True

False

18.

Blood flows from the liver back to the heart through the hepatic portal vein.

True

False

Answer 1

.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 rod-like 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 applying firm fingertip pressure to the skin at sites where the arteries travel near the skin's surface; it is more evident when surrounding muscles are relaxed.

5 true

As surfactants absorb they break these interactions. The intermolecular forces between surfactant and water molecule are much lower than between two water molecules and thus surface tension will decrease. ... The main purpose of the surfactants is to decrease the surface and interfacial tension and stabilize the interface

6 true

The myenteric plexus (or Auerbach's plexus) provides motor innervation to both layers of the muscular layer of the gut, having both parasympathetic and sympathetic input (although present ganglion cell bodies belong to parasympathetic innervation, fibers from sympathetic innervation also reach the plexus)

7 true

Brunner's glands in the mucosa of the duodenum secrete alkaline mucus containing a high concentration of bicarbonate ions to neutralize the hydrochloric acid present in the chyme.

8 true

The falciform ligament, visible on the front of the liver, divides the liver into a left and a much larger right lobe. ... A line can be imagined running from the left of the vena cava and all the way forward to divide the liver and gallbladder into two halves. This line is called "Cantlie's line"

9 false

The superior pharyngeal constrictor muscle is a muscle in the pharynx. It is the highest located muscle of the three pharyngeal constrictors. The muscle is a quadrilateral muscle, thinner and paler than the inferior pharyngeal constrictor muscle and middle pharyngeal constrictor muscle.

The muscle is divided into four parts: A pterygopharyngeal, buccopharyngeal, mylopharyngeal and a glossopharyngeal part

10 false

The Inferior pharyngeal constrictor, the thickest of the three constrictors, arises from the sides of the cricoid and thyroid cartilage. Similarly to the superior and middle pharyngeal constrictor muscles, it is innervated by the vagus nerve (cranial nerve X), specifically, by branches from the pharyngeal plexus and by neuronal branches from the recurrent laryngeal nerve

11 true

Kupffer cells, also known as stellate macrophages and Kupffer–Browicz cells, are specialized macrophages located in the liver, lining the walls of the sinusoids. They form part of the mononuclear phagocyte system.

12 true

The shunt that bypasses the lungs is called the foramen ovale. This shunt moves blood from the right atrium of the heart to the left atrium. The ductus arteriosus moves blood from the pulmonary artery to the aorta. Oxygen and nutrients from the mother's blood are sent across the placenta to the fetus

13 true

Within a human, the bacterium is subjected to the highly acidic environment of the stomach (typically pH 2), and also the less acidic environment of the duodenum (pH ~ 6).

14 true

Esophageal epithelium is non-keratinized stratified squamous. Note that the basal surface of the epithelium can be deeply indented by connective tissue papillae. ... The epithelium is variously described as resembling that of gastric mucosa (i.e., with tubular glands) or of intestinal mucosa )

15 false

he left part of the curvature gives attachment to the gastrolienal ligament, while to its anterior portion are attached the two layers of the greater omentum, separated from each other by the gastroepiploic vessels.

16 false

Bilirubin present in bile is a product of the liver's digestion of worn out red blood cells. Kupffer cells in the liver catch and destroy old, worn out red blood cells and pass their components on to hepatocytes

17 true

appendix is designed to protect good bacteria in the gut. That way, when the gut is affected by a bout of diarrhea or other illness that cleans out the intestines, the good bacteria in the appendix can repopulate the digestive system and keep you healthy

18 false

The hepatic portal vein is a vessel that moves blood from the spleen and gastrointestinal tract to the liver. It is approximately three to four inches in length and is usually formed by the merging of the superior mesenteric and splenic veins behind the upper edge of the head of the pancreas