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Bones
Arm and Hands
40
Anatomy
12th Grade
03/03/2017

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Term
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Definition
There are 64 bones in the Arm.
Term
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Definition
Humerus
Term
Humerus
Definition
-Part of the upper arm (The Upper Arm had 6 bones, 3 on each side).
-long bone of the upper arm.
-made up of 3 sections.
Term
[image]
Definition
The Shoulder
AKA Pectoral Girdle
Term
The Shoulder/Pectoral Girdle
Definition
-Connects the Arm to the Axial Skeleton.
Term
[image]
Definition
Clavical
Term
Clavical
Definition
-AKA Collarbone
-has several functions
-moves along its axis (like a key) when the shoulder is abducted.
Term
Lower Arm
Definition
4 bones (2 on each side)
-ulna
-Radius
Term
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Definition
Ulna
Term
Ulna
Definition
-One of the two long bones in the forearm.
-It is located on the pinkie side of the arm.
Term
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Definition
Radius
Term
Radius
Definition
-AKA Radial bone.
-One of the two long bones in the arm.
-Located on the thumb side of the arm.
Term
Manus
Definition
-Terminal segment of a forelimb, corresponding to the hand and wrist.
Term
The Hand
Definition
54 Bones (27 in each hand)
Term
[image]
Definition
The Carpals
Term
The Carpals
Definition
-Eight small bones that make up the wrist.
-Allows the wrist to move and rotate vertically.
Term
Carpus
Definition
-AKA the Wrist
-Facilitate effective positioning of the hand and powerful use and mobility of the individual carpal bones.
-The bones do not belong to the individual fingers.
Term
[image]
Definition
Scaphoid bone
Term
Scaphoid Bone (2)
Definition
-One of the Carpal Bones.
-Located on the thumb side of the wrist.
-Forms the radial border of the carpal tunnel.
Term
[image]
Definition
Lunate Bone
Term
Lunate Bone (2)
Definition
-Carpal Bone.
-Distinguished by its deep concavity and crescent outline.
-Located in the center of the proximal row.
-provides superstructure for the hand and movement for the wrist.
Term
[image]
Definition
Triquetral Bone
Term
Triquetral Bone (2)
Definition
-AKA Triangular bone.
-One of the Carpal bones.
-Located on the medial side of the proximal row, between the lunate and pisiform bone.
Term
[image]
Definition
Pisiform Bone
Term
Pisiform Bone (2)
Definition
-One of the Carpal Bones.
-Small pea shaped.
-forms the Ulnar border of the carpal tunnel.
-It is NOT involved in the movement of the wrist.
Term
[image]
Definition
Trapezium
Term
Trapezium (2)
Definition
-One of the carpal bones
-Forms the radial border if the carpal tunnel.
-Important to thumb movement.
Term
[image]
Definition
Trapezoid
Term
Tapezoid (2)
Definition
-One of the carpal bones
-smallest bone in the distal row
-wedge shaped.
-provides a bony superstructure for the hand.
Term
[image]
Definition
Capitate Bone
Term
Capitate Bone
Definition
-Center of the carpal bone region.
-Articulates with the third metacarpal bone which forms the third carpometacarpol joint.
-Largest carpal bone.
-provides a bony superstructer for the hand
Term
[image]
Definition
Hamate Bone
Term
Hamate Bone
Definition
-AKA Unciform bone or Hook.
-Wedge shaped and hook-like process, where it provides a bony superstructure for the hand.
Term
[image]
Definition
Metacarpal Bones
Term
Metacarpals (5x2=10)
Definition
-form the intermediate of the hand.
-located between the Carpals and Phalanges.
-equivalent to the metatarsals in the the foot.
Term
[image]
Definition
Phalanges
Term
Phalangesm
Definition
-Digital bone in the hand.
-Thumbs and big toes have two phalanges while the others have three.
-proximal are closest to the hand
-intermediate are in the middle (also intermediate in size).
-Distal are the tips of the fingers.
Term
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Definition
Proximal Phalanges
Term
[image]
Definition
Intermediate Phalanges
Term
[image]
Definition
Distal Phalanges
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