Question

1. Epithelial tissue ______

1. None of the listed responses is correct
2. has two free surfaces
3. does not have cell junctions
4. is avascular

2. Which type of epithelium constructs the thin walls of the air sac in the lungs?

1. simple squamous epithelium
2. simple cuboidal epithelium
3. simple columnar epithelium
4. None of the listed responses is correct.

3. Unlike skeletal muscle, cardiac muscle

1. has cells that are very long
2. lacks striations
3. has multiple nuclei per cell
4. has intercalated discs

4. Red bone marrow contains a high amount of

1. stem cells that produce blood cells
2. fat
3. elastic tissue
4. cartilage

5. The clavicle articulates with the scapula at the

1. sternoclavicular joint
2. acromioclavicular joint
3. suprascapular notch
4. coracoid process

Answer 1

1) The correct option is D. is avascular.

Epithelial tissues are avascular. Therefore, nutrients enter in the tissue by the process of diffusion or absorption.

2) The correct option is D. None of the listed responses is correct.

Pseudostratified columnar epithelium. It lines the larger respiratory airways of the nasal cavity, trachea, and bronchi.

3) The correct option is C. has multiple nuclei per cell.

Cardiac muscle cells have only one nucleus unlike skeletal muscle cells are multinucleate.

4) The correct option is A. stem cells that produce blood cells.

Red bone marrow contains hematopoietic stem cells, which form blood cells.

5) The correct option is B. acromioclavicular joint.

Clavicle communicates with the acromion of the scapula at the acromioclavicular joint and coracoclavicular ligament provides indirect support for the acromioclavicular joint.