Section 1
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endocrine system
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Last updated
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Date created
Mar 1, 2020
Cards (63)
Section 1
(50 cards)
endocrine system
system that is responsible for sending out hormones that regulate homeostasis in the body
anatomy
study of the biological form of an organism
motor neuron
sends impulses to muscles to create movement
tissue
a group of related cells
skeletal muscle
voluntary, attached to bones, multinucleated, striated
tendon
connects muscle to bone
erythrocyte
red blood cell
saltatory conduction
rapid jumping of an impulse from node to node
sensory neuron
pick up stimuli from the environment and send to the brain
muscular tissue
tissue that moves the body and its parts; striated muscles contain actin and myosin filaments for contraction
interneuron
neurons in the central nervous system that communicate internally and connect sensory to motor neurons; are responsible for reflexes
digestive ssytem
system that is responsible for food breakdown and nutrient absorption 1) Mouth / Saliva 2) Pharynx 3) Esophagus 4) Stomach 5) Small intestine ** 6) Pancreas 7) Liver 8) Large Intestine
node of Ranvier
gap between myelin sheaths that expose the axon, help accelerate impulses
neuroglia
- maintain homeostasis - form myelin - provide support and protection for neurons (ex. Schwann cells)
negative feedback
process that reduces stimuli to return organism to homeostasis
organ
one functional unit of tissues
integumentary system
system that is responsible for protecting the outer body
organ system
organs working together to perform a specific function
leukocyte
white blood cell
smooth muscle
involuntary, in walls of blood vessels and viscera, one nucleus
gland
a group of specialized epithelial cells that are capable of producing secretions
plasma
liquid part of blood
respiratory system
system that is responsible for gas exchange
epithelial tissue
tissue that covers outside of the body and lines organs and cavities; tightly bound to form a protective layer; highly regenerative
reproductive system
system that is responsible for producing gametes and reproducing
homeostasis
tendency to maintain a balanced or constant internal state
nervous tissue
tissue that senses stimuli, integrates and analyzes them, and controls the body's response
immune system
system that is responsible for protecting the inner body from pathogens
osteocyte
bone, calcified cells that provide sturdy support
dense connective tissue
have large amounts of either collagen fibers (making them strong) or elastic fibers, or both, includes tendons and ligaments
loose connective tissue
less packed connective tissue which makes it loose and flexible, includes adipose
ligament
connects bone to bone
muscular system
system that is responsible for carrying out voluntary movement
chondrocyte
cartilage, connects and cushions joints
circulatory system
system that responsible fordistributing nutrients, oxygen and other vital materials throughout the body
skeletal system
system that is responsible for creating a rigid framework
urinary system
system that is responsible for waste elimination By water levels 1) NH3 / NH4 2) Urea 3) Uric acid
adipose
fat reserve cells
physiology
study of the biological functions an organism performs
levels of organization
1. cell 2. tissue 3. organ 4. organ system
nervous system
system that is responsible for body intercommunication, picking up and responding to stimuli, and stimulating movement 1) Resting potential 2) Depolarization 3) Repolarization 4) Hyperpolarization 5) Refractory period - chemical synaptic cleft
Schwann cell
support and insulates axons using a myelin sheath
stimulus
change or signal in the environment that can make an organism react
cell body
contains nucleus of the neuron
axon
conduct and propagate impulses
cardiac muscle
involuntary, single nucleated, striated, have gap junctions to link adjacent cells and help the heart perform as one unit (intercalated disks)
neuron
main cell of the nervous system
thrombocyte
platelet
connective tissue
tissue that provides support for the body and connects all its parts; has an extracellular matrix (secreted by fibroblasts) made of collagen, elastin and reticulin
dendrite
receive stimuli; highly branched extensions
Section 2
(13 cards)