Human Anatomy and Physiology : Gross Anatomy
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Example Questions
Example Question #28 : Identifying Nerves And Blood Vessels
What are the three cords of the brachial plexus?
Superior, middle, and inferior
Lateral, middle, and medial
Superior, inferior, and posterior
Lateral, medial, and posterior
Lateral, medial, and posterior
The brachial plexus is divided into roots, trunks, divisions, cords, and terminal branches. There are three cords which are named the lateral, medial, and posterior because of their locations in the arm.
Example Question #29 : Identifying Nerves And Blood Vessels
What are the three trunks in the brachial plexus?
Lateral, middle, and posterior
Medial, superior, and inferior
Superior, middle, and inferior
Lateral, medial, and posterior
Superior, middle, and inferior
The brachial plexus is divided into roots, trunks, divisions, cords, and terminal branches. There are three trunks which are named the superior, middle, and inferior based on their locations in the body.
Example Question #30 : Identifying Nerves And Blood Vessels
The left gonadal vein drains directly into which of the following?
Inferior vena cava
Inferior mesenteric vein
Left adrenal vein
Left renal vein
Left renal vein
On the left side of the body, the gonadal vein drains into the renal vein. Remember this only happens on the left side. This is because the inferior vena cava is located on the right side of the body, making this a location issue.
Example Question #31 : Identifying Nerves And Blood Vessels
Which vein most directly drains blood from the intercostal muscles?
Azygos vein
Superior vena cava
Inferior vena cava
Phrenic vein
Azygos vein
The azygos vein runs along the esophagus and spine in the thoracic cavity. It get oxygen-poor blood from the intercostal muscles and drains into the superior vena cava.
Example Question #31 : Identifying Nerves And Blood Vessels
What are the five nerves that make up the brachial plexus?
radial, ulnar, femoral, axillary, median
Tibial, fibular, femoral, phrenic, median
Musculocutaneous, phrenic, axillary, hypoglossal, vagus
Musculocutaneous, radial, median, axillary, ulnar
Musculocutaneous, radial, median, axillary, ulnar
The brachial plexus is located in the axillary region near the clavicle. It is responsible for innervating the arm and forearm as well as certain muscles in the shoulder region. From this information we can infer that the five main nerves from the plexus are the: musculocutaneous, radial, median, axillary, and ulnar.
Example Question #32 : Identifying Nerves And Blood Vessels
Which blood vessel serves the gastrocnemius muscle?
Anterior tibial artery
Fibular artery
Posterior tibial artery
Deep femoral artery
Posterior tibial artery
The gastrocnemius muscles is located in the superficial, posterior compartment of the leg. We can eliminate the deep femoral artery because it supplies the thigh and the anterior tibial artery because it supplies the anterior leg. Of our two remaining choices, the fibular artery supplies the lateral compartment of the leg. Thus, the answer is posterior tibial artery.
Example Question #34 : Identifying Nerves And Blood Vessels
Which of the colic arteries supplies the transverse colon?
Left colic artery
Middle colic artery
Ileocolic artery
Right colic artery
Middle colic artery
The ileocolic artery supplies the ileocecal junction. The right colic artery supplies the ascending colon. The left colic artery supplies the descending colon. The makes the correct answer the middle colic artery.
Example Question #33 : Identifying Nerves And Blood Vessels
Which artery supplies the midgut?
Superior mesenteric artery
Cystic artery
Gastroduodenal artery
Inferior mesenteric artery
Celiac trunk
Superior mesenteric artery
The superior mesenteric artery is responsible for supplying the midgut. The midgut starts from the second half of duodenum and continues until the two-thirds point of the transverse colon. The inferior mesenteric artery supplies the hindgut, while the celiac trunk supplies the foregut.
Example Question #34 : Identifying Nerves And Blood Vessels
Which artery supplies the hindgut?
Splenic artery
Superior mesenteric artery
Common hepatic artery
Inferior mesenteric artery
Gastroepiploic artery
Inferior mesenteric artery
The inferior mesenteric artery supplies the hindgut. The hindgut region starts from the two-thirds point of the transverse colon and continues to the anus. The celiac trunk supplies the foregut, while the superior mesenteric artery supplies the midgut.
Example Question #35 : Identifying Nerves And Blood Vessels
Which of the following nerves is part of the brachial plexus?
Phrenic nerve
Tibial nerve
Ulnar nerve
Femoral nerve
Ulnar nerve
The brachial plexus is a network of nerves that run though the axial region. This means the only correct choice is the ulnar nerve. The femoral and tibial nerves are located in the lower extremities and the phrenic nerve is located in the thoracic cavity.
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