Human Gross Anatomy Challenge

Question 1

Which cranial fossa houses the pituitary gland within the sella turcica?

Accepted Answer

Middle cranial fossa

Answer

Anterior cranial fossa

Answer

Posterior cranial fossa

Answer

Orbital cavity

Question 2

A stab wound to the left 5th intercostal space at the midclavicular line most directly threatens which structure?

Accepted Answer

Left ventricle

Answer

Right atrium

Answer

Superior vena cava

Answer

Azygos vein

Question 3

Which structure passes through the diaphragm at the T8 vertebral level?

Accepted Answer

Inferior vena cava

Answer

Esophagus

Answer

Thoracic duct

Answer

Aorta

Question 4

The appendix most commonly arises from which part of the large intestine?

Accepted Answer

Cecum

Answer

Ascending colon

Answer

Transverse colon

Answer

Sigmoid colon

Question 5

Which nerve is most at risk during surgical removal of the parotid gland due to its course through the gland?

Accepted Answer

Facial nerve

Answer

Glossopharyngeal nerve

Answer

Hypoglossal nerve

Answer

Vagus nerve

Question 6

Which bone forms the keystone of the cranial floor because it articulates with all other cranial bones?

Accepted Answer

Sphenoid bone

Answer

Temporal bone

Answer

Occipital bone

Answer

Ethmoid bone

Question 7

In the cubital fossa, which structure lies most laterally?

Accepted Answer

Biceps tendon

Answer

Median nerve

Answer

Brachial artery

Answer

Median cubital vein

Question 8

Which lobe of the liver contains the caudate lobe on its posterior surface?

Accepted Answer

Right anatomical lobe

Answer

Left anatomical lobe

Answer

Quadrate lobe

Answer

Middle hepatic segment

Question 9

The renal artery typically branches directly from which major vessel?

Accepted Answer

Abdominal aorta

Answer

Inferior vena cava

Answer

Common iliac artery

Answer

Superior mesenteric artery

Question 10

Which structure marks the division between the upper and lower respiratory tracts in standard gross anatomical description?

Accepted Answer

Larynx

Answer

Epiglottis

Answer

Soft palate

Answer

Tracheal bifurcation

Question 11

A fracture of the surgical neck of the humerus commonly endangers which nerve?

Accepted Answer

Axillary nerve

Answer

Radial nerve

Answer

Ulnar nerve

Answer

Musculocutaneous nerve

Question 12

Which chamber of the heart receives oxygenated blood from the pulmonary veins?

Accepted Answer

Left atrium

Answer

Right atrium

Answer

Right ventricle

Answer

Left ventricle

Question 13

Which meningeal layer is tightly adherent to the inner surface of the skull?

Accepted Answer

Dura mater

Answer

Arachnoid mater

Answer

Pia mater

Answer

Subdural membrane

Question 14

The anatomical snuffbox is bounded posteriorly by the tendons of which muscles?

Accepted Answer

Extensor pollicis longus and extensor pollicis brevis

Answer

Abductor pollicis longus and extensor pollicis brevis

Answer

Extensor pollicis longus and extensor indicis

Answer

Flexor pollicis longus and abductor pollicis longus

Question 15

Which part of the small intestine is primarily retroperitoneal except for its first proximal segment?

Accepted Answer

Duodenum

Answer

Jejunum

Answer

Ileum

Answer

Terminal ileum

Question 16

Which vessel is formed by the union of the splenic vein and superior mesenteric vein?

Accepted Answer

Hepatic portal vein

Answer

Inferior mesenteric vein

Answer

Common hepatic vein

Answer

Celiac trunk

Human Gross Anatomy Challenge

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