2.6 Exercises for Lesson 2

1. What is a tissue?

2. What are the most common types of tissues?

a. .

b. .

c. .

d. .

3. What is epithelial tissue?

4. If an outer layer of epithelial tissue consists of flat cells and if there are several layers of cells in the tissue, then what is the type of epithelial tissue?

5. What is connective tissue?

6. What term is used for the material found among and outside the cells of connective tissue?

7. The four major types of connective tissue (CT) are CT, CT, CT, and CT.

8. Characteristic cells of fibrous CT are . Cartilage cells are also called . Cells that make and repair bone are . Cells that tear down and remove bone are .

9. The matrix of fibrous CT consists of . The matrix produced by cartilage cells appears h and a . Fat CT has a matrix of
.

10. Two major types of fibrous connective tissue (FCT) are FCT, which is a filling substance around most organs and tissues of the body, and FCT, which is found, for example, in ligaments and tendons.

11. What type of connective tissue has an amorphous, homogeneous matrix?

12. What type of connective tissue has a matrix of lipid (fat or oil)?

13. What are muscle tissues?

14. The cells of one type of muscle tissue are spindle-shaped, contain one nucleus, and are not striated. What is this tissue called?

15. Which type of muscle tissue has cells which have one nucleus and are short, branched, and striated?

16. Which type of muscle tissue has cells which have numerous nuclei and are long and cylindrical?

17. What is nervous tissue?

18. What type of tissue has cells that respond to stimuli and transmit information?

19. A nerve cell, which actually picks up and transmits a signal, is also known as a .

20. The supporting structure of the nervous system is known as the or the .

Answers to Exercises for Lesson 2

1. A tissue is a grouping of like cells working together. (para 2-1)

2. a. Epithelial.
b. Connective.
c. Muscle.
d. Nervous. (para 2-2)

3. Epithelial tissue is tissue that covers surfaces and lines cavities. (para 2-4)

4. If there are several layers and if the outer layer consists of flat cells, then the tissue is called a stratified squamous epithelium. (para 2-6b)

5. Connective tissue is tissue that supports other tissues, holds tissues together, or fills spaces. (para 2-7a)

6. The term used for material found among and outside the cells of connective tissue is matrix. (para 2-7b)

7. The four major types of connective tissue (CT) are fibrous CT, cartilage CT, bone CT, and fat CT. (para 2-8)

8. Characteristic cells of fibrous CT are fibroblasts. Cartilage cells are also called chondroblasts. Cells that make and repair bone are osteoblasts. Cells that tear down and remove bone are osteoclasts. (paras 2-9a, 2-10a, 2-11a)

9. The matrix of fibrous CT consists of fibers. The matrix produced by cartilage cells appears homogeneous and amorphous. Fat CT has a matrix of lipid.
(paras 2-9b, 2-10b, 2-12b)

10. Two major types of fibrous connective tissue (FCT) are loose areolar FCT, which is a filling substance around most organs and tissues of the body, and dense FCT, which is found, for example, in ligaments and tendons. (para 2-9d)

11. Cartilage CT. (para 2-10b)

12. Fat CT. (para 2-12b)

13. Muscle tissues are tissues whose contracting elements enable muscles to produce motion. (para 2-14)

14. Smooth muscle tissue. (para 2-15c)

15. Cardiac muscle tissue. (para 2-15b)

16. Skeletal muscle tissue. (para 2-15a)

17. Nervous tissue is a collection of cells that respond to stimuli and transmit information. (para 2-16)

18. Nervous tissue. (para 2-16)

19. A nerve cell, which actually picks up and transmits a signal, is also known as a neuron. (para 2-17a)

20. The supporting structure of the nervous system is known as the glia, or the neuroglia. (para 2-17b)