Procedure Bthe Upper Limb

1. Review a textbook section on the upper limb.

2. As a review activity, label figures 15.3, 15.4, 15.5, and 15.6.

3. Examine the following bones and features of the upper limb:

humerus head greater tubercle lesser tubercle intertubercular groove anatomical neck surgical neck

Figure 15.1 Label the bones and features of the shoulder and upper limb (anterior view).

Figure 15.1 Label the bones and features of the shoulder and upper limb (anterior view).

Trochlear Notch Ulna

deltoid tuberosity capitulum trochlea medial epicondyle lateral epicondyle coronoid fossa olecranon fossa radius head radial tuberosity styloid process ulnar notch ulna trochlear notch (semilunar notch)

radial notch olecranon process coronoid process styloid process head

Figure 15.2 Label (a) the posterior surface of the left scapula and (£>) the lateral aspect of the left scapula.

Figure 15.2 Label (a) the posterior surface of the left scapula and (£>) the lateral aspect of the left scapula.

Label The Posterior Surface

Figure 15.3 Label the (a) posterior surface and (b) anterior surface of the left humerus.

Upper Extremity Label

Figure 15.4 Label the major features of the radius and ulna -1

Radius

Radius

Anatomy Labeled Styloid Process

Ulna

Ulna

Carpal Bones Labeling

Figure 15.6 Label the bones and groups of bones in this posterior view of the left hand.

Medial

carpal bones proximal row (listed lateral to medial) scaphoid lunate triquetrum pisiform distal row (listed medial to lateral) hamate capitate trapezoid trapezium

T he following mnemonic device will help you learn the eight carpals:

So Long Top Part Here Comes The Thumb

The first letter of each word corresponds to the first letter of a carpal. Notice that this device arranges the carpals in order for the proximal, transverse row of four

Figure 15.6 Label the bones and groups of bones in this posterior view of the left hand.

Medial

Label Bones The Hand

bones from lateral to medial, followed by the distal, transverse row from medial to lateral, which ends nearest the thumb. This arrangement assumes the hand is in the anatomical position.

metacarpal bones phalanges proximal phalanx middle phalanx distal phalanx 4. Complete Parts B and C of the laboratory report.

OPTIONAL ACTIVITY

U se different colored pencils to distinguish the individual bones in figure 15.6

Web Quest

What are the functions of individual bones and features? Search these and review the anatomy of the skeleton at http:// www.mhhe.com/biosci/abio/martinlmwq.mhtml

Laboratory Report

Section.

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