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Superficial Branch Of The Ulnar Nerve
The superficial branch of the ulnar nerve is a terminal branch of the ulnar nerve. It supplies the palmaris brevis and the skin on the ulnar side of the hand. It also divides into a common palmar digital nerve and a proper palmar digital nerve. The proper digital branches are distributed to the fingers in the same manner as those of the median nerve The median nerve is a nerve in humans and other animals in the upper limb. It is one of the five main nerves originating from the brachial plexus. The median nerve originates from the lateral and medial cords of the brachial plexus, and has contr .... References External links * Nerves of the upper limb {{Neuroanatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palmaris Brevis Muscle
Palmaris brevis muscle is a thin, quadrilateral muscle, placed beneath the integument of the ulnar side of the hand. It acts to fold the skin of the hypothenar eminence transversally. Structure Origin and insertion Palmaris brevis muscle is located on the ulnar side of the hand. It arises from the tendinous fasciculi from the transverse carpal ligament and palmar aponeurosis. The muscle fibres are inserted into the skin on the ulnar border of the palm of the hand, and occasionally on the pisiform bone. Innervation Palmaris brevis muscle is the only muscle innervated by the superficial branch of the ulnar nerve (C8, T1). Blood supply Palmaris brevis muscle is supplied by the palmar metacarpal artery of the deep palmar arch. Discovery The first recorded observation of the muscle is by Italian anatomist Giambattista Canano sometime before 1543. The muscle was independently discovered a few years later by Realdo Colombo before being pushed to general acceptance in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulnar Nerve
In human anatomy, the ulnar nerve is a nerve that runs near the ulna bone. The ulnar collateral ligament of elbow joint is in relation with the ulnar nerve. The nerve is the largest in the human body unprotected by muscle or bone, so injury is common. This nerve is directly connected to the little finger, and the adjacent half of the ring finger, innervating the palmar aspect of these fingers, including both front and back of the tips, perhaps as far back as the fingernail beds. This nerve can cause an electric shock-like sensation by striking the medial epicondyle of the humerus posteriorly, or inferiorly with the elbow flexed. The ulnar nerve is trapped between the bone and the overlying skin at this point. This is commonly referred to as bumping one's "funny bone". This name is thought to be a pun, based on the sound resemblance between the name of the bone of the upper arm, the humerus, and the word " humorous". Alternatively, according to the Oxford English Dictiona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palmaris Brevis
Palmaris brevis muscle is a thin, quadrilateral muscle, placed beneath the integument of the ulnar side of the hand. It acts to fold the skin of the hypothenar eminence transversally. Structure Origin and insertion Palmaris brevis muscle is located on the ulnar side of the hand. It arises from the tendinous fasciculi from the transverse carpal ligament and palmar aponeurosis. The muscle fibres are inserted into the skin on the ulnar border of the palm of the hand, and occasionally on the pisiform bone. Innervation Palmaris brevis muscle is the only muscle innervated by the superficial branch of the ulnar nerve (C8, T1). Blood supply Palmaris brevis muscle is supplied by the palmar metacarpal artery of the deep palmar arch. Discovery The first recorded observation of the muscle is by Italian anatomist Giambattista Canano sometime before 1543. The muscle was independently discovered a few years later by Realdo Colombo before being pushed to general acceptance in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hand
A hand is a prehensile, multi-fingered appendage located at the end of the forearm or forelimb of primates such as humans, chimpanzees, monkeys, and lemurs. A few other vertebrates such as the koala (which has two opposable thumbs on each "hand" and fingerprints extremely similar to human fingerprints) are often described as having "hands" instead of paws on their front limbs. The raccoon is usually described as having "hands" though opposable thumbs are lacking. Some evolutionary anatomists use the term ''hand'' to refer to the appendage of digits on the forelimb more generally—for example, in the context of whether the three digits of the bird hand involved the same homologous loss of two digits as in the dinosaur hand. The human hand usually has five digits: four fingers plus one thumb; these are often referred to collectively as five fingers, however, whereby the thumb is included as one of the fingers. It has 27 bones, not including the sesamoid bone, the numbe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Palmar Digital Nerve
The common palmar digital nerves A nerve is an enclosed, cable-like bundle of nerve fibers (called axons) in the peripheral nervous system. A nerve transmits electrical impulses. It is the basic unit of the peripheral nervous system. A nerve provides a common pathway for the e ... of the ulnar nerve are nerves of the hand. The nerve branches off the superficial branch of the ulnar nerve and runs toward the cleft between the ring and little fingers. Additional images File:Gray811and813.PNG, Cutaneous nerves of right upper extremity. File:Slide4gggg.JPG, Common palmar digital nerves File:Slide4RRR.JPG, Common palmar digital btanches of ulnar nerves File:Slide12AAAA.JPG, Common palmar digital btanches of ulnar nerves References Sources Nerves of the upper limb {{neuroanatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proper Palmar Digital Nerve
The proper palmar digital nerves of the ulnar nerve are nerves of the hand. The superficial branch of the ulnar nerve divides into a proper palmar digital nerve, which supplies the medial side of the fifth digit and a common palmar digital nerve The common palmar digital nerves A nerve is an enclosed, cable-like bundle of nerve fibers (called axons) in the peripheral nervous system. A nerve transmits electrical impulses. It is the basic unit of the peripheral nervous system. A nerve ... which divides into two proper palmar digital nerves that supply the adjacent sides of the fourth and fifth digits. Additional images File:Gray811and813.PNG, Cutaneous nerves of right upper extremity. References Nerves of the upper limb {{neuroanatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Median Nerve
The median nerve is a nerve in humans and other animals in the upper limb. It is one of the five main nerves originating from the brachial plexus. The median nerve originates from the lateral and medial cords of the brachial plexus, and has contributions from ventral roots of C5-C7 (lateral cord) and C8 and T1 (medial cord). The median nerve is the only nerve that passes through the carpal tunnel. Carpal tunnel syndrome is the disability that results from the median nerve being pressed in the carpal tunnel. Structure The median nerve arises from the branches from lateral and medial cords of the brachial plexus, courses through the anterior part of arm, forearm, and hand, and terminates by supplying the muscles of the hand. Arm After receiving inputs from both the lateral and medial cords of the brachial plexus, the median nerve enters the arm from the axilla at the inferior margin of the teres major muscle. It then passes vertically down and courses lateral to the brachial a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
