tissue quiz 2 Flashcards
(23 cards)
erythrocytes are?
RBC
Leukocytes are?
WBC
Thrombbocytes are?
Platelets
shape of RBC
boconcave disc
what makes RBC red?
hemoglobin
WBC are?
much larger; have a nucleus, soldiers, fight infection
platelets are?
help seal damaged blood vessels; fragments of large cells called magakaryocytes
Skeletal muscles are?
attached to bones by tendons
functions of skeletal muscles?
contracts faster than any other type; multi nucleated; striation; alternating light and dark bands; made by actin and myocin; allows movement (voluntary)
Smooth muscles are?
no striations; hold contractions the longest; involuntary
cardiac muscles are found where?
in the heart
functions of cardiac muscles?
provide heart beat and pump blood; striated; involuntary; branch out
Nervous tissue are found where?
the brain, spinal chord, and nerves throughout the body
parts of a neuron?
Dendrites (arms), cell body, axon, myelin sheath
what is the purpose of the dendrite?
bring messages to the cell body
what is the purpose of the axon?
carries nerve impulses away from cell body
out numbers neurons 9:1
neuroglia
parts of the ventral body cavity?
Thoracic; pleural (lungs) and pericardial (heart), Abdominal (organs)
two parts of the dorsal body cavity?
cranial (brain) and vertebral (spinal cord)
mucous membrane
goblet cells; secrete mucous. ex; sweep and filter dust and create mucus, runny nose, extra mucus to trap pathogens, lining of stomach/ forms protective bearer with stomach acid
serous membrane
these provide lubrication by farming a watery fluid, pleura (covers lungs), pericardium (covers the heart) cuts down on friction (heart beat), peritoneum; lines the abdominal cavity and organs, peritonitis (infection)(appendix ruptures)
synovial membrane
lines freely moveable joint cavities; secretes synovial fluid that lubricates joints
meninges
found in the dorsal cavity; meningitis
