All Human Anatomy and Physiology Resources
Example Questions
Example Question #95 : Identifying Nerves And Blood Vessels
The left and right gastro-mental arteries supply what structure?
Lesser curvature of the stomach
Spleen
Right quadrant of the liver
Greater curvature of the stomach
Greater curvature of the stomach
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?
Adductor magnus
Adductor brevis
Adductor hiatus
Sciatic notch
Adductor hiatus
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?
Posterior inferior cerebellar artery (PICA)
Anterior inferior cerebellar artery (AICA)
Anterior cerebral artery
Basilar artery
Anterior cerebral artery
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?
Proper hepatic artery
Left hepatic artery
Right hepatic artery
Cystic artery
Proper hepatic artery
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.
Example Question #201 : Organs
The abdominal aorta splits into which set of paired arteries that supply the legs?
Right and left gastro-omental arteries
Right and left iliac arteries
Right and left renal arteries
Right and left adrenal arteries
Right and left iliac arteries
Here, we are looking for a pair of arteries that comes inferiority along the abdominal aorta. The correct answer here is the pair of iliac arteries that supply the legs. The adrenal arteries supply the adrenal glands, the renal arteries supply the kidneys, and the gastro-mental arteries supple the greater curvature of the stomach, each of which superior to the hips and legs.
Example Question #202 : Organs
Which of the following arteries does not arise from the aortic arch?
Left subclavian
Brachiocephalic trunk
Left common carotid
Right common carotid
Right common carotid
The aortic arch comes directly from the left ventricle of the heart following the ascending aorta and has three branches that supply the head, neck, and upper extremities. The correct answer is the right common carotid artery, as this artery arises from the brachiocephalic trunk. All the other answer choices come from the aortic arch. In the anatomical position from left to right it is ordered left subclavian, left common carotid, brachiocephalic trunk.
Example Question #203 : Organs
The brachiocephalic trunk branches off into which two arteries?
Right common carotid and right subclavian
Right common carotid and right axillary
Left and right common carotids
Left common carotid and left subclavian
Right common carotid and right subclavian
The brachiocephalic trunk extends to the right side of the chest and neck, giving rise to two main arteries. These are the right common carotid artery which supplies the neck, face and brain, and the axillary artery which extends to the shoulder and arm. The left common carotid and left subclavian arteries both arise from the aortic arch.
Example Question #204 : Organs
The right and left vertebral arteries merge together to become which artery in the circle of Willis?
Middle cerebral artery
Internal carotid artery
Posterior communicating artery
Basilar artery
Basilar artery
The correct answer is the basilar artery. The vertebral arteries extend into the posterior compartment of the brain, merging to become the basilar artery which then anastomoses with arteries in the anterior compartment of the brain. The internal carotid arteries branch into the middle cerebral arteries while the posterior communicating arteries connect the middle and posterior cerebral arteries.
Example Question #205 : Organs
What is a difference between veins and arteries?
Veins are never larger than arteries
Only arteries have muscle in the tunica media
Veins have thicker walls than arteries
Arteries have a thicker layer of muscle in the tunica media
Arteries have a thicker layer of muscle in the tunica media
Arteries carry blood away from the heart and experience higher blood pressure. Thus, arteries have a thicker layer of muscle within the tunica media. Veins also have muscle in the tunica media, but it is much thinner than that found in arteries. Veins often are larger in diameter than arteries as well due to the larger volume of blood they carry. Finally, due to the thicker muscle in arteries, they have thicker walls than veins.
Example Question #206 : Organs
What nerve innervates the diaphragm and from which spinal levels does it originate?
Vagus nerve - C3, C4, and C5
Subcostal nerve - T3, T4, and T5
Phrenic nerve - C3, C4, and C5
Axillary nerve - T1 and T2
Intercostal nerve - T1 and T2
Phrenic nerve - C3, C4, and C5
The phrenic nerve is the innervation for the diaphragm. It originates in the cervical spine at the levels of C3-C5. There are two phrenic nerves (left and right), which innervate their respective sides of the diaphragm. A helpful phrase to remember this is "C3,C4,C5 keeps the diaphragm alive!"