Muscle & Nervous Tissue
highly cellular, well vascularized tissues that are responsible for most types of body movement
muscle cells possess _________, elaborate versions of the actin and myosin filaments that bring about movement or contraction in all cell types
what are the 3 types of muscle tissue?
skeletal muscle tissue is packaged by connective tissue sheets onto organs called ___________.
long, cylindrical cells containing many peripherally located nuclei
skeletal muscle cells (aka skeletal muscle fibers)
cardiac muscle is found _______
in the walls of the heart
which 2 muscle cells types are striated?
skeletal and cardiac
cardiac muscle cells have one _______ that is centrally located
cardiac cells have a unique look described as __________
cardiac cells fit together at unique junctions called ___________
a muscle type with no visible striations
smooth muscle is found in...
the walls of hollow organs (excluding the heart)
(i.e. digestive & urinary tract organs, uterus and blood vessels)
because skeletal muscle movement is under our conscious control it is referred to as _____________ movement
cardiac and smooth muscle movement is classified as ____________, as we do not have conscious control over them
regulates and controls body functions
nervous tissue contains 2 major cell types
2. supporting cells
highly specialized nerve cells that generate and conduct nerve impulses
the neuron's branching cytoplasmic extensions enable them to...
1. respond to stimuli
2. transmit electrical impulses over substantial distances in the body
what is the name of the extension or process that allows neurons to respond to stimuli?
what is the name of the process that allows neurons to transmit electrical impulses?
list the 3 functions of the nonconducting, supporting cells
3. protect delicate neurons