Zoo lab 3 - histology 1 (smooth/muscle)

Question 1

Histology

Answer 1

the study of tissues

Question 2

Germinal layer

Answer 2

The long cells at the bottom of the stratified squamous epithelial tissue complex that are capable of mitotically dividing to support the layers above it.

Question 3

Cornified layer

Answer 3

The flat cells at the top of the stratified squamous epithelial tissue complex. They are keratinized.

Question 4

Glands deep to the skin in frogs are composed of what tissue?

Answer 4

Epithelial tissue

Question 5

Basement membrane

Answer 5

The basal lamina. It is beneath the structure of squamous epithelial tissue.

Question 6

What is the kidney primarily composed of?

Answer 6

Simple cuboidal epithelium

Question 7

Simple cuboidal ET

Answer 7

cells are cube-shaped with a nucleus in the middle

Question 8

Simple Squamous ET

Answer 8

Cells are flat

Question 9

Where can you find epithelial tissue?

Answer 9

Lines the inside and outside of organs, governing what exits and enters organs.

Question 10

Simple Columnar ET

Answer 10

Cells are elongated and have a nucleus near the base of the cell.

Question 11

Smooth muscle

Answer 11

Unconscious control, flat with an elongated central nuclei.

Question 12

Cardiac muscle

Answer 12

Unconscious control. Only found in vertebrates. Can be differentiated by intercalated discs, branching, and striations. Central nuclei.

Question 13

A bands vs I bands

Answer 13

A bands are dArk, I bands are L(I)ght. A bands are myosin or overlapping myosin and actin. I bands are actin alone. Myosin pulls on the actin to shorten the muscle, thus contracting it.

Question 14

Skeletal muscle

Answer 14

The most abundant tissue in the body. Under conscious control. Striated. Multinucleated. Peripheral nuclei.

Question 15

Two classes of muscle, generally

Answer 15

Smooth and Striated

Question 16

Frog intestine from outside to inside

Answer 16

simple columnar ET with goblet cells, two smooth muscle cell layers, simple squamous ET

Question 17

Goblet cells

Answer 17

in the simple columnar ET of frog intestine, creates mucus and secretes it into the lumen

Question 18

Sarcolemma

Answer 18

Nucleated, clear, and thin membrane that surrounds the muscle fiber.