Human Anatomy and Physiology : Organs

Study concepts, example questions & explanations for Human Anatomy and Physiology

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Example Questions

Example Question #665 : Gross Anatomy

The musculocutaneous nerve arises from which cord of the brachial plexus?

Possible Answers:

Lateral cord

Middle cord

Posterior cord

Medial cord

Correct answer:

Lateral cord

Explanation:

The correct answer is the lateral cord. The medial cord gives rise to the ulnar and median nerves, the posterior cord feeds nerves in the deep compartment of the upper arm, and the middle cord is not a cord, it is a trunk.

Example Question #666 : Gross Anatomy

Which of the following arteries come as a pair?

Possible Answers:

Subclavian arteries

Splenic arteries

Intercostal arteries

Adrenal arteries

Correct answer:

Adrenal arteries

Explanation:

In the body, certain arteries come in pairs, meaning they have either a left and right, or an internal and external. Of the ones listed here, only the adrenal arteries have both a left and right, making it the correct answer. There is only one artery for each of the other answer choices.

Example Question #92 : Identifying Nerves And Blood Vessels

Which of the following arteries does not branch off of the celiac trunk?

Possible Answers:

Common hepatic artery

Right gastric artery

Left gastric artery

Splenic artery

Correct answer:

Right gastric artery

Explanation:

The celiac trunk is a branch off of the abdominal aorta which is partially responsible for the circulation of blood to the abdominal organs. There are three branches of the celiac trunk which are as follows: left gastric, common hepatic, and splenic arteries. That means the correct answer would be the right gastric artery which does not come from the celiac trunk, but instead anastomoses with the left gastric artery to supply the lesser curvature of the stomach.

Example Question #93 : Identifying Nerves And Blood Vessels

The deep femoral artery gives rise to the medial and lateral branches of which of the following arteries?

Possible Answers:

Femoral circumflex

Femoral

Tibial

Iliac

Correct answer:

Femoral circumflex

Explanation:

For this question we are looking for arteries which are inferior to the pubic bone, yet superior to the tibia and fibula, which leave us with either the femoral artery or femoral circumflex artery. The correct answer is the pair of femoral circumflex arteries which supply muscles in the deep compartment of the thigh. The femoral artery does not have a medial or lateral branch.

Example Question #94 : Identifying Nerves And Blood Vessels

The left common carotid artery branches into which two arteries?

Possible Answers:

Internal and external carotid arteries

Maxillary and facial arteries

External carotid and superior laryngeal arteries

Superior and inferior thyroid arteries

Correct answer:

Internal and external carotid arteries

Explanation:

The left common carotid artery gives rise to the internal and external carotids. While each of the other answer choice supply an area of the face or neck, they do not arise from the common carotid artery. In fact, each of these arteries arise from either the internal or external carotid arteries.

Example Question #670 : Gross Anatomy

The tubular artery supplies which compartment of the leg?

Possible Answers:

Lateral

Medial

Superficial

Deep

Correct answer:

Lateral

Explanation:

The fibular artery is one of three arteries that arise from the popliteal artery. The other two are the anterior and posterior tibial arteries which supply the anterior and posterior compartments respectively. Therefore the correct answer is the lateral compartment because there is no medial compartment.

Example Question #95 : Identifying Nerves And Blood Vessels

The left and right gastro-mental arteries supply what structure?

Possible Answers:

Lesser curvature of the stomach

Spleen

Right quadrant of the liver

Greater curvature of the stomach

Correct answer:

Greater curvature of the stomach

Explanation:

The correct answer is the greater curvature of the stomach. This is because the greater curvature is connected to the greater omentum, a large fold of peritoneum that covers the organs in the abdomen. The lesser curvature of the stomach is supplied  by the left and right gastric arteries, the spleen is supplied by the splenic artery, and the right quadrant of the liver is supplied by the right hepatic artery.

Example Question #672 : Gross Anatomy

At which point in the leg does the femoral artery become the political artery?

Possible Answers:

Adductor magnus

Adductor brevis

Adductor hiatus

Sciatic notch

Correct answer:

Adductor hiatus

Explanation:

The correct answer is the adductor hiatus. This is the "hole" in the adductor magnus muscle of the thigh where the femoral artery becomes the popliteal artery. Both the adductor magnus and braves are muscles and the sciatic notch is located posteriorly in the ilium.

Example Question #96 : Identifying Nerves And Blood Vessels

Which of the following arteries does not supply blood to a part of the brain stem?

Possible Answers:

Posterior inferior cerebellar artery (PICA)

Anterior inferior cerebellar artery (AICA)

Anterior cerebral artery

Basilar artery

Correct answer:

Anterior cerebral artery

Explanation:

The anterior cerebral artery supplies the deep portion of the frontal lobe, but it does not supply the brainstem. The AICA supplies a portion of the lateral pons. The PICA supplies a portion of the lateral medulla. Branches of the basilar artery supply the medial and lateral pons, as well as the midbrain.

Example Question #101 : Identifying Nerves And Blood Vessels

The common hepatic artery gives rise to which artery?

Possible Answers:

Proper hepatic artery

Left hepatic artery

Right hepatic artery

Cystic artery

Correct answer:

Proper hepatic artery

Explanation:

The correct answer is the proper hepatic artery. Each of these answer choices, however, supplies one portion of the liver, or gall bladder. The common hepatic artery gives rise to the proper hepatic artery which then gives rise to the right and left hepatic arteries as well as the cystic artery.

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