Biology, asked by sadjohnfirstar, 11 months ago

Introduction of Forelimbs

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Answered by sunnyrock
1
The upper limb is the region of the skeleton that is known for its mobility and dexterity. It is the area of the skeleton that is able to grasp, strike and conduct fine motor skills. It is supported and stabilized by various muscles attached to the ribs and vertebrae. The upper limb consists of  four major parts:

Shoulder
Arm
yForearm
Hand
The upper limb is the region of the skeleton that is known for its mobility and dexterity. It is the area of the skeleton that is able to grasp, strike and conduct fine motor skills. It is supported and stabilized by various muscles attached to the ribs and vertebrae. The upper limb consists of  four major parts:

ShoulderArmForearmHand


ARM

The arm is the longest  and first segment of the upper limb. It extends from the shoulder to the level of the elbow. It consists of the humerus and has a posterior and anterior compartment.

FOREARM

The forearm is said to be the second longest segment of the upper limb. It extends from the elbow and the wrist. It is composed of an anterior and posterior compartment. It  contains two bones:

UlnaRadiusHAND

As we move distal from the forearm we have the hand.  It is composed of the:

WristPalmDorsum of the handdigits

The hand is unique because it is important in order for us to grasp things and detect pain and temperature due the the  rich supply of sensory nerve endings. The along contains of 27 bones in our bodies. In the next sections we will talk about the bones of the upper limb.



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