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Merrill Chpt 4

Digits, Hand, Wrist

What are the names of the three groups of bones that comprise the hand and wrist? Phalanges, Metacarpals, Carpal
Which bones articulate with the heads of the metacarpal bones? carpals, distal phalanges, proximal phalanges Proximal phalanges
What group of bones articulates with the bases of metacarpal bones? Carpals
What part of a metacarpal bone (base or head) forms part of each metacarpophalangeal joint? Head
T/F: Phalanges are number 1-5. They are numbered medially to laterally False. Laterally to Medially
Indicate the quantity of bones in the phalanges & metacarpals of the hand, and in the carpals in the wrist. 14, 5, 8
Digits 2-5 have 3 phalanges, how are they described? Distal phalanx middle phalanx, proximal phalanx
Digit 1 has 2 phalanges, how are they described? Distal phalanx, proximal phalanx
The proximal phalanges are the closest to the wrist or palm? Palm
The distal phalanges are the farthest from the palm or wrist? Palm
Phalanges are named by location. Give an example of this Distal phalanx of third digit
What has a head, body, & base? Phalanges
Metacarpals compose what? Palm of hand
Digits are identified by letters or numbers? Numbers
Metacarpals have a base, body, head and ____? Neck
Heads of metacarpals are _____; articulate with _____? Distal, phalanges
Bases of metacarpals are ____; articulate with _____? Proximal, carpals
An area on the metacarpal body where fractures usually occur? Neck
The metacarpal heads are commonly known as? Knuckles
There are ____rows of ___carpals? 2, 4
The carpals have 2 rows, are they lateral to medial, or proximal to distal? Proximal to distal
The proximal row of carpals include? scaphoid, lunate, triquetrum, pisifor
The medial row of carpals include? Trapezium, trapezoid, capitate, hamate
How many bones does the hand have? 27
Anatomists divide the bones of the upper limbs/extremities, into the following main groups. A. Hand, wrist, arm, forearm B. Hand, forearm, arm, shoulder girdle C. Wrist, forearm, shoulder girdle, hand B. Hand, forearm, arm, & shoulder girdle
Is the proximal or medial row of carpals closest to the forearm? Proximal
The most commonly fractured and largest bone in the carpals? Scaphoid
Created by: swisscheese



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