1. Which type of the following joints has the greatest freedom of movement? plan

Question

1. Which type of the following joints has the greatest freedom of movement?

planar joint

hinge joint

pivot joint

ball and socket joint

2. True or False. The supraspinatus and infraspinatus are named for their origins/insertions on the spine of the scapula.

3. Describe the three articulations in the elbow joint. Specifically, a) which bones articulate (include the bone markings involved), and b) which movements do each of these articulations allow?

4. Describe the articulation between the scapula and the humerus. a) What parts of the bones articulate, b) what type of joint is it, and c) what is the name of this joint?

5. If you were to palpate your olecranon process, where would you find it? Where would you find the styloid process of the ulna? The styloid process of the radius?

6. Starting with your arm at your side, parallel to your body, raise it to shoulder length. What is this muscle action called, and name one muscle involved in this movement.

7. In anatomical position, the radius is __________ to the ulna and the radial tuberosity faces the ____________ direction.

medial; anterior

medial; posterior

lateral; anterior

lateral; posterior

8. Which muscle is attached to the radial tuberosity, and what are the actions of that muscle?

9. Rickets is a skeletal disorder that can be caused by a deficiency in Vitamin D, which is necessary for calcium and phosphate absorption in the intestines. A deficiency in Vitamin D, particularly during ages of rapid bone growth, can lead to stunted bone development. Based on what you know about bone formation, how would you expect the long bone you had observed in lab to have looked if the cow had a Vitamin D deficiency during adolescence? Why?

Explanation / Answer

1.Ball-and-socket joints has greatest freedom of movements.

2. True

3.The human elbow is the Summat

A) humeroulnar articulation( the synovial hinge joints with articulatoion between trochlea

B) Humeroradial articulation

c) pivot type synovial joints with arculation between the head of the radius and the radial notch of ulna.

Allow for ion and extension of the elbow as well as supination and pronation of the forearm and wrist at the elblow.

4. The most flexible joints in the entire human body, our shloulder joint is formed by the union of humerus the scapula and clavicle

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