Lecture 2 and 3 HW (FIRST MIDTERM) Flashcards
The junction type that lets neighboring cells exchange small molecules is the:
Gap junction
Functions of epithelia include all of the following except: controlling permeability. supporting muscle cells. absorption. producing specialized secretions. providing physical protection.
supporting muscle cells
Epithelial cells that are adapted for absorption usually have ________ at their free surface.
microvilli
Epithelium is connected to underlying connective tissue by:
a basement membrane
An epithelial cell can be divided into two functional regions. They are the ________ and the basal surface.
apical
Which type of secretion involves the loss of apical cytoplasm?
apocrine
A marked loss in strength and elasticity of connective tissue characterizes Marfan’s syndrome. Which connective tissue component imparts strength and elasticity? ground substance. proteinaceous connective tissue fibers. adipocytes. fibroblasts.
proteinaceous connective tissue fibers
The viscous material between cells of areolar connective tissue is called the:
ground substance
The serous membrane lining the abdominal cavity is the:
peritoneum
The function of ________ is to propagate electrical signals from one place to another.
neurons
Which layer contains most of the accessory structures?
3
The layer of hard keratin that coats the hair is termed the:
cuticle
The viscous material between cells of areolar connective tissue is called the…
ground substance
When the arrector pili muscles contract, what is formed?
“goose bumps”
A protein that reduces water loss at the skin surface is:
keratin
Adipose tissue is a major component of the region labeled…
5
Label 1-5.
What layers does the cutaneous membrane consist of?
- Epidermis
- Papillary layer
- Reticular layer
- Dermis
- Hypodermis
Cutaneous membrane is the epidermis and dermis (1-4)
