Chapter 4 Intro to tissues

Question 1

What are the four main tissue groups and their function

Answer 1

Nervous tissue- mainly for communication. These cells are long and thin I order to spread information throughout the body

Muscle tissue. This is for contraction and pulls on bone

Epithelial tissue. Covers organs and lines hollow organs. Things like skin and lining of blood vessels

Connective tissue. Mainly used for strength and is between other tissues. This includes things like fat and blood and bone tissue

Question 2

Nervous tissue sub groups?

Answer 2

Brain nervous tissue

Spinal cord nervous tissue.

2

Question 3

Muscle nervous tissue sub groups?

Answer 3

Cardiac muscle tissue

Skeletal muscle tissue

Smooth muscle tissue

Question 4

Epithelial tissue sub groups? (8)

Answer 4

Simple squamous epithelial tissue

Simple cuboidal epithelial tissue

Simple columnar epithelial tissue

Psuedostratified columnar epithelial tissue

Stratified squamous epithelial tissue

Stratified cuboidal epithelial tissue

Stratified columnar epithelial tissue

Transitional epithelial tissue

Question 5

Connective tissue sub group (12)

Answer 5

Adipose CT
Areolar CT
BLood CT
Dense regular
Dense irregular
Elastic CT
Elastic cartilage CT
Fibrocartilage CT
Hyaline cartilage CT
Osseous CT, compact 
Osseous CT, spongy
Reticular CT

Question 6

What occurs that causes a fertilized cell to lead to multiple different types of cells

Answer 6

Differentiation occurs that makes different types of cells. The original embryonic cells become the embryonic tissue ( ectoderm, mesoderm, endoderm)

Question 7

Where was the connective tissue originally derived from ( what embryo tissue)

Answer 7

From the mesoderm

Question 8

Where was the epithelial tissue originally derived from( embryonic tissue)

Answer 8

From all three

the ecto, meso, and endoderm

Question 9

What embryonic tissue was the nervous tissue derived from

Answer 9

Ectoderm

Question 10

What embryonic tissue was the muscular tissue derived from

Answer 10

Mesoderm

Question 11

What are the steps to evaluating an organ histology

Answer 11

1. Biopsy- a price of tissue is sliced to be observed under microscope
2. Fixed- to preserve , the tissue is put into a solution so it doesn’t rot( hardens so can be sectioned)
3. section- tissue is cut into thin slices
4. mount- sections are out onto glass slides
5. Stain- special chemical that colors specific tissue
6. coverslip-transparent glue that holds the tissue in place on the glass slide and forms a barrier.