Anatomy

Origin and Insertion of the Palmar and Dorsal Interossei

The following table summarizes the Origin and Insertion of the Palmar and Dorsal Interossei. Muscles Origin Insertion Palmar interossei First palmar interosseous Second palmar interosseous Third and fourth palmar interossei Medial side of the base of 1st metacarpal Medial half of the palmar aspect of 2nd metacarpal Lateral parts of the palmar aspects of the …

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Origin, Insertion, Nerve supply and Actions of Scapulohumeral Muscles

The following table summarizes the Origin, insertion, nerve supply, and actions of the scapulo-humeral muscles. Muscle Origin Insertion Nerve supply Actions Deltoid(a) Clavicular part –unipennate(b) Acromial part –multipennate(c) Spinous part –unipennate • Anterior aspect oflateral 1/3rd of clavicle• Lateral border ofacromion• Lower lip of the spineof scapula Deltoid tuberosity ofhumerus Axillary nerve (C5, C6) • …

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Difference Between Male and Female Hip Bones

The following table summarises the Differences between male and female hip bones Features Female Male Greater sciatic notch Wider (75°) Narrower (< 50°) Ischial spine Not inverted Inverted Ischiopubic ramus Thin and not everted Thick and everted Obturator foramen Triangular Oval Acetabular diameter Less than 5 cm More than 5 cm Distance between the pubic …

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Differences between Parotid, Sub-mandibular and Sub-lingual Salivary Glands

The following table summarises the Distinguishing features of the parotid, submandibular, and sublingual salivary glands. Parotid gland Submandibular gland Sublingual gland Location Near the ear Below the mandible Below the tongue Development Ectodermal Endodermal Endodermal Size Largest (25 g) Smaller (10–20 g) Smallest (3–4 g) Shape Pyramidal shaped J-shaped Almond shaped Duct and its site …

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Summary of Thenar and Hypothenar Muscles of Hand

The following table summarises the Origin, insertion, and actions of the thenar and hypothenar muscles of Hand. Muscles Origin Insertion Action Thenar muscles Abductor pollicis brevis • Tubercle of scaphoid• Crest of trapezium• Flexor retinaculum Lateral side of base of the proximalphalanx of thumb Abduction of thumb Flexor pollicis brevis • Superficial head from thedistal …

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Structures passing through Extensor Retinaculum

The Extensor Zone VII (wrist) contains 6 extensor compartments comprising of 6 synovial sheath lined tunnels separated from each other by fibrous sheath. These compartments contain tendons of muscles that pass from forearm to hand. The number of tendons passing through the compartments (radial to ulnar) can be remembered using the mnemonic: 2-2-1-2-1-1. Compartment 1: APL (Abductor …

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Summary of Deep Extensors of Forearm

The following table summarises the Origin, Insertion, Nerve supply, and actions of the deep muscles of the back of the forearm (deep extensors of forearm). Muscle Origin Insertion Nerve supply Action Supinator • Lateral epicondyle• Lateral ligament of theelbow joint• Annular ligament• Supinator crest of ulnaand from thetriangular area in frontof it Upper one-third of …

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Summary of Extensor Muscles of Forearm (Superficial Extensors of Forearm)

The following table summarizes the Origin, insertion, nerve supply, and actions of the superficial muscles of the back of the forearm (superficial extensors). Muscle Origin Insertion Nerve supply Actions Lateral group Brachioradialis(Fig. 9.15) Upper two-third of thelateral supracondylar ridge of the humerus Lateral surface of the distalend of radius just above thestyloid process Radial nerve …

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Divisions and Subdivisions of The Diencephalon

The following table summarises the Divisions and subdivisions of the diencephalon. Divisions Subdivisions Pars dorsalis • Thalamus (dorsal thalamus) • Metathalamus Medial and lateralgeniculate bodies • Epithalamus Pineal gland, habenularnuclei and commissure,and posterior commissure Pars ventralis • Subthalamus (ventralthalamus) Subthalamic nucleusand zona inserta • Hypothalamus Hope you found that article useful. We are glad you …

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Parts of Brain And Their Cavities/Ventricles

There are four ventricles or cavities in the human central nervous system. The table below summarizes the part of the brain and what the respective ventricle is called. Do memorize this table by heart. Part of Brain Cavity Cerebrum (right and leftcerebral hemispheres) Right and left lateralventricles Diencephalon (thalamusand hypothalamus) Third ventricle Midbrain Cerebral aqueduct …

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