proximal
part of the body that is closer to the center of the body than another part.
ex: the knee is proximal to the toes
Chemical reaction that uses water and involves breaking molecules down into smaller pieces
hydrolysis
organelles of the cell
nucleus
ribosomes
endoplasmic reticulum
Golgi apparatus
vesicles
vacuoles
lysosomes
mitochondria
chloroplasts
centrioles
What does the plasma membrane do?
Controls what enters and leaves the cell
Homeostatic regulatory mechanisms
Negative feedback is used the most
What kind of tissue is blood?
Connective
Saggital
divides body into left and right
transverse plane
, Divides body into upper and lower parts
frontal plane
Divides the body into front and back portions.
what muscle provides a major force
prime mover (agonist)
isotonic contractions
muscle length changes and moves the load, the tension remains relatively constant through the
rest of the contractile period.
come in two flavors concentric and eccentric
attachment to the stationary bone
organ
Striations can be seen on what types of muscle?
cardiac and skeletal
What is the membrane of skeletal muscles
sarcolemma - contains sarcoplasm, the cytoplasm of muscle cells
Molecule that blocks myosin and actin
Tropomyosin
What is released at the neuromuscular junction that results in muscular contraction
acetylcholine
What are some factors that increase conduction of action potential
Axon diameter, internode distance, and myelin sheath thickness
Functional contractile unit of a muscle fiber
sarcomere