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Anatomy Review: Cranial Nerves and Nervous System Structures
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Anatomy Review: Cranial Nerves and Nervous System Structures

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Questions and Answers

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?

<p>Trigeminal nerve</p> Signup and view all the answers

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

<p>Olfactory Nerve</p> Signup and view all the answers

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

<p>Athetosis</p> Signup and view all the answers

What are the functions affected by musculocutaneous nerve injury?

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

Which muscles are innervated by the lateral pectoral nerve?

<p>Pectoralis major, Pectoralis minor</p> Signup and view all the answers

What is the function of the long thoracic nerve?

<p>Innervates Serratus anterior muscle</p> Signup and view all the answers

Which nerve supplies the supraspinatus and infraspinatus muscles?

<p>Suprascapular nerve (C5, C6)</p> Signup and view all the answers

What muscles are affected by an upper subscapular nerve injury?

<p>Upper part of subscapularis</p> Signup and view all the answers

What are the functions of the axillary nerve?

<p>Innervates Deltoid, Teres minor muscles</p> Signup and view all the answers

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

<p>Posterobasal lower lobe</p> Signup and view all the answers

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

<p>Apical segment</p> Signup and view all the answers

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

<p>T10</p> Signup and view all the answers

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

<p>Inferior thyroid artery</p> Signup and view all the answers

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

<p>Thoracic duct</p> Signup and view all the answers

Which part of the gut tube is lined with endoderm?

<p>Epithelium</p> Signup and view all the answers

What are the actions of the pectoralis major muscle?

<p>Adduction, Medial rotation, Flexion of shoulder joint</p> Signup and view all the answers

Where does the pectoralis major muscle insert?

<p>Lateral lip of bicipital groove of the humerus</p> Signup and view all the answers

Which nerves innervate the pectoralis major muscle?

<p>Medial &amp; lateral pectoral nerves</p> Signup and view all the answers

What is the most common type of congenital diaphragmatic hernia?

<p>Bochdalek hernia</p> Signup and view all the answers

When does the heart beat start during development?

<p>21st day</p> Signup and view all the answers

What does the conotruncal septum divide?

<p>Truncus arteriosus into pulmonary trunk &amp; aorta</p> Signup and view all the answers

What is the midpoint of the inguinal ligament?

<p>Midpoint of line between ASIS &amp; pubic tubercle</p> Signup and view all the answers

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

<p>1.25 cm above the mid-inguinal point</p> Signup and view all the answers

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

<p>Spermatic cord and Iliopubic tract</p> Signup and view all the answers

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

<p>External oblique</p> Signup and view all the answers

What are the boundaries of the inguinal canal?

<p>Inlet: Deep ring, Outlet: Superficial ring</p> Signup and view all the answers

What features characterize the anterior wall of the inguinal canal?

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

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