Tissue Types and Function Flashcards
The epithelial tissue produces a variety of secretions. What helps to moisten and protect the epithelium?
tears and saliva
What secretion is in the airway that helps trap particles?
mucus secretions
What are other forms of secretions produced by epithelial tissue?
urine and sweat
What secretions are produced by the mammary tissue epithelial cells?
milk
What do the cells lining the blood cells provide?
points of exchange
What is the very specialized epithelial layer of the eye?
retina
What senses are made up of epithelial tissue?
smell and hearing
What does connective tissue provide for the epithelium besides support?
supplies nutrients and removes wastes
How is the epithelial tissue categorized?
based on the shape of cells and number of layers
What provides a classic example of stratified epithelium?
skin
How does stratified epithelium appear? (skin)
appears more cuboidal
What is keratin?
hard structural protein
Where else is stratified squamous epithelium found?
regions of mechanical stress
What is another term for skin?
integument
What does skin (integument) offer?
two way barrier over the body
What do the specializations of the skin help to maintain?
(hair,fur,sweat glands)
a stable body temperature
The skin is responsible for the synthesis of-
vitamin D
What does the pigment in the skin help to protect?
the body from damaging ultraviolet radiation
What does the skin do as a sensory organ?
detects pain, pressure, and temperature
What does the skins flexibility allow for?
movement
What does the skin consist of?
epidermis and dermis
What does the hypodermis have a large percentage of?
fat
What are foot pads or digital pads?
extremely thickened and hardened specialized areas of the skin
What does hair provide?
insulation, protection, and sensation
How does the benefit of insulation occur?
air is trapped among the hairs
What is the arrector pili?
muscle attached to the connective tissue around the hair follicle
What are examples of connective tissue?
tendons, fat, blood, cartilage, bone
What does the appearance of connective tissue range from?
fibrous to smooth
What does connective tissue do?
connects one organ/tissue to another
What do tendons do?
connects muscle to bones
What do ligaments do?
connects bones to bones
What do ligaments have other than collagen?
elastin
What are two of the supporting connective tissues?
bone and cartilage
What does bone give the body?
it’s shape, allows for movement, and protects internal organs
The numbers of fat cells don’t change, but what does?
amount of stored lipid
What is considered to be a special type of connective tissue?
blood
What are the formed elements found in blood?
red and white blood cells, and platelets
What do muscles allow mammals to do?
move
What do skeletal muscles do?
attaches to the skeleton and allows motion
How does the animal control the skeletal muscles?
nerve signals from the nervous system
Where is cardiac muscle found?
in the heart
Is cardiac muscle voluntary or involuntary?
involuntary
The number of muscle fibers in a muscle group remains consistent. What happens to those fibers when used?
get larger
What does cardiac muscle contain more than of skeletal?
mitochondria
What do cardiac muscle cells have the unique ability to do?
initiate their own contraction
What has to be provided for the cardiac muscle cells to continue to beat?
oxygen, glucose
Does smooth muscle contract faster or slower than skeletal?
slower
What are the cells able to maintain?
contraction for prolonged periods of time without tiring
What organs make up the central nervous system?
brain, spinal cord
What are the cells of nerve tissue called?
neurons
What is the hair like extension from the cell body that carries nerve impulses?
axon
What do bundled axons from many neurons form?
a nerve
What are the other extensions called in a nerve/axon?
dendrites
