Anatomy and Cell Biology 3319 Lecture : Anatomy Notes

51 views4 pages

purplejackal117

3 Feb 2012

School

Western University

Department

Anatomy and Cell Biology

Course

Anatomy and Cell Biology 3319

Professor

Peter Merrifield

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

The finer, lighter bones of the upper limb are required for complex grasping, reaching, and lifting. The heavier much stronger bones of the lower limb stabilize our weight and are required for powerful movements during walking and running. Movements of the limbs: flexion is bringing the arm closer to the body at the elbow and extension is extending the arm out away from the body. Supination is when the palms are facing out (as in anatomical position) and pronation is the opposite. Abduction is away from the midline and adduction is towards the midline. Lateral rotation is rotation away from the midline (as in turning the ankle out to the side) and medial rotation is rotation towards the midline. Protraction is pushing forward (arms straight out pushing against a wall) and retraction is pulling back (pulling arms back behind you). General features of the limbs: the upper and lower limbs share a common general outline.

Related Questions

Complete the muscle analysis chart by listing the musclesprimarily involved in each movement.

Note: list each muscle separated by a comma and list thesections of a muscle (ie. upper, middle, lower) if they contributeto a particular movement.

1. Adduction	2. Abduction

3. Elevation	4. Depression

5. Upward Rotation	6. Downward Rotation

champagnewater-buffalo150

Wordbank for 1-9: outer external oblique, gracilis, tibia,middle internal oblique, hypaxial, epxail, humerus, cranidorsally,masseters, caudodorsally, pubis, longitudinal, tibia, deeptransversus abdominus, rectus abdominis, sternum, transverse,scapula, femur, ulna, clavotrapezius, spinotrapezius, bicepsbranchi, temporals, radius, pectoral, patella, one, two, three,four. (~0.23 points/blank, 9 pts total) glueteus, sartorius ,ischeium, Illium, antagonistic, synergistic

1) ________is the primary muscle involved in extending theforearm . It has ______ heads that originate on the _______ and_________________ and inserts on the _________.

2) The ______________ are and are involved in flexion of forearmand insert into the ______________. They are named for having anorigin with _______ heads that attach to tendons connected to the__________________.

3) The deltoid muscles abduct/retract/extends and rotate theupper arm. They originate on the processes of the ______________and insert on the ________________ or each other.

4) The _________________ muscles adduct/flexes the upper arm,and originate on the _____________________ and other tissues at themidline.

5) There are three sets of _________________ muscles that areinvolved in compressing the abdomen. The _________________ are themost internal and run in a ________________ orientation, the_________________ are the middle and fibers run in a________________ orientation, and the ____________________ are themost superficial and extend in a __________________ direction.