Anatomy Review: Cranial Nerves and Nervous System Structures

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Which cranial nerve has the longest intra-dural course?

Abducens Nerve

What is the longest interosseous course nerve?

Facial Nerve

Which nerve has the longest extra-cranial course?

Vagus Nerve

Which is the largest cranial nerve?

Trigeminal nerve Signup and view all the answers

Identify the nerve that is the shortest in the human body.

Olfactory Nerve Signup and view all the answers

What are the spontaneous writhing movements of hand, arm, neck & face known as?

Athetosis Signup and view all the answers

What are the functions affected by musculocutaneous nerve injury?

Elbow flexion, Supination, Sensation in lateral aspect of forearm Signup and view all the answers

Which muscles are innervated by the lateral pectoral nerve?

Pectoralis major, Pectoralis minor Signup and view all the answers

What is the function of the long thoracic nerve?

Innervates Serratus anterior muscle Signup and view all the answers

Which nerve supplies the supraspinatus and infraspinatus muscles?

Suprascapular nerve (C5, C6) Signup and view all the answers

What muscles are affected by an upper subscapular nerve injury?

Upper part of subscapularis Signup and view all the answers

What are the functions of the axillary nerve?

Innervates Deltoid, Teres minor muscles Signup and view all the answers

Which bronchopulmonary segment of the right lung is dependent in standing position?

Posterobasal lower lobe Signup and view all the answers

In the supine position, which segment of the lower lobe of the right lung is dependent?

Apical segment Signup and view all the answers

At which vertebral level does the esophageal opening in the diaphragm lie?

T10 Signup and view all the answers

What is the blood supply to the cervical part of the esophagus?

Inferior thyroid artery Signup and view all the answers

What is the largest lymphatic vessel that drains the entire body, except for specific regions?

Thoracic duct Signup and view all the answers

Which part of the gut tube is lined with endoderm?

Epithelium Signup and view all the answers

What are the actions of the pectoralis major muscle?

Adduction, Medial rotation, Flexion of shoulder joint Signup and view all the answers

Where does the pectoralis major muscle insert?

Lateral lip of bicipital groove of the humerus Signup and view all the answers

Which nerves innervate the pectoralis major muscle?

Medial & lateral pectoral nerves Signup and view all the answers

What is the most common type of congenital diaphragmatic hernia?

Bochdalek hernia Signup and view all the answers

When does the heart beat start during development?

21st day Signup and view all the answers

What does the conotruncal septum divide?

Truncus arteriosus into pulmonary trunk & aorta Signup and view all the answers

What is the midpoint of the inguinal ligament?

Midpoint of line between ASIS & pubic tubercle Signup and view all the answers

Where is the deep inguinal ring located in relation to the mid-inguinal point?

1.25 cm above the mid-inguinal point Signup and view all the answers

What are the true contents that enter through the deep ring in males?

Spermatic cord and Iliopubic tract Signup and view all the answers

What structure is strengthened laterally by the internal oblique muscle in the inguinal canal?

External oblique Signup and view all the answers

What are the boundaries of the inguinal canal?

Inlet: Deep ring, Outlet: Superficial ring Signup and view all the answers

What features characterize the anterior wall of the inguinal canal?

Defect in fascia transversalis, Located 1.25 cm above mid-inguinal point, Located above & medial to pubic tubercle Signup and view all the answers

Longest intra-dural cranial nerve

Abducens Nerve

Longest interosseous course nerve

Facial Nerve