tissues organ organ systems Flashcards
1
Q
tissues
A
- group of similar cells specialized for a common function
- study of tissues called histology
- 4 types of animal tissue: epithelial, connective, nervous, muscle
2
Q
epithelial tissue
A
- renewable, flat sheet of cells that cover or line something
- 5 functions
1. protection = skin
2. absorption = lining of the small intestine
3. transport = kidney tubules
4. excretion = sweat glands
5. sensory perception = taste buds
3
Q
simple tissue
A
1 layer of cells
4
Q
stratified tissue
A
2 or more stacked layers
5
Q
squamous tissue
A
flat
6
Q
cuboidal tissue
A
cube shaped
7
Q
columnar
A
column like
8
Q
simple squamous epithelial tissue
A
- respiratory surfaces such as the lining of the lungs or the skin of a frog
- function: allows passage of materials by diffusion and filtration
9
Q
simple cuboidal epithelial tissue
A
- found in kidney tubes, ducts and small glands
- function: secretion and absorption
10
Q
simple columnar epithelial tissue
A
- single layer of elongated cells
- lines digestive tract
- function: absolution and enzyme secretion
11
Q
stratified squamous epithelial tissue
A
- many layers of cells
- lines the esophagus, mouth, and vagina
- protects underlying tissues in areas prone to abrasion
12
Q
connective tissue
A
- supports and binds tissue together
- nature of matrix largely determines function of connective tissue
13
Q
extracellular matrix
A
the cells of connective tissue are separated by non-living material
14
Q
loose connective tissue
A
- strong, flexible collagen fibers interwoven with other fibers to create elastic consistency
- binds skin to muscle tissue
- widely distributed under the skin
- wraps and cushions organs
15
Q
adipose tissue
A
- type of loose connective tissue
- contains fat droplets that push the nuclei close to plasma membrane
- around kidneys, under skin
