Q1: The median nerve is formed by the union of:

Alright Lawrence, let's get these anatomy questions solved.

Here are the answers to the multiple-choice questions from your Anatomy Test:

Q1: The median nerve is formed by the union of:
The median nerve is formed by the lateral root from the lateral cord and the medial root from the medial cord of the brachial plexus.

• A. Medial and lateral roots

Q2: The pterygopalatine fossa communicates with the orbit through the:
The pterygopalatine fossa communicates with the orbit via the inferior orbital fissure.

• B. Inferior orbital fissure

Q3: The blood supply of the femoral head in an adult is mainly from the:
In adults, the primary blood supply to the femoral head comes from the medial circumflex femoral artery.

• B. Medial circumflex femoral artery

Q4: Which of the following structures forms the floor of the adductor canal?
The adductor canal's floor is formed by the vastus medialis muscle.

• C. Vastus medialis

Q5: The recurrent laryngeal nerve on the right side hooks around the:
The right recurrent laryngeal nerve hooks around the right subclavian artery.

• B. Right subclavian artery

Q6: The main venous drainage of the upper limb is into the:
The axillary vein continues as the subclavian vein, which is the main venous drainage of the upper limb.

• D. Subclavian vein

Q7: The anterior abdominal wall is innervated by all the following nerves EXCEPT:
The genitofemoral nerve primarily innervates the cremaster muscle and skin of the upper thigh/genital region, not the anterior abdominal wall muscles.

• D. Genitofemoral nerve

Q8: The muscles of mastication are supplied by the:
The muscles of mastication are innervated by the mandibular nerve, which is the third division of the trigeminal nerve (CN V3).

• C. Mandibular nerve (V3)

Q9: The narrowest part of the male urethra is the:
The narrowest part of the male urethra is the external urethral orifice (meatus).

• D. External urethral orifice

Q10: The deltoid muscle is supplied by the:
The deltoid muscle is innervated by the axillary nerve.

• A. Axillary nerve