Muscle And Nervous Tissues Flashcards
Characteristics of Skeletal Muscle Tissue (5)
Long, cylindrical cells Multi-nucleated Striated Voluntary control Relies on INTRACELLULAR Calcium (Ca2+)
Location is Skeletal muscle tissue
Component of Skeletal muscles (organs) and attached to bone
What are the three specificities types of muscle tissue
skeletal muscle tissue
cardiac muscle tissue
smooth muscle tissue
Characteristics of cardiac muscle tissue (6)
short, branching cells meet end to end mono nucleated cells striated involuntary control relies on EXTRACELLULAR Ca2+ Posses intercalated discs with gap junctions
Location of cardiac muscle tissu
walls of heart
Characteristics of smooth muscle tissue (5)
small, spindle shaped cells mono-nucleated cells smooth, non-striated involuntary control rely on EXTRACELLULAR 2+
Locations of smooth muscle tissue
walls of hollow organs (guts, arteries, respiratory tract, reproductive tract, urinary tract and iris of eye)
Cells found in nervous tissue
Neuron and neuroglia
What is the function and characteristics of a neuron
function: receives and transmits electrical impulses
characteristics: cannot divide by mitosis, much larger than neuroglia
What is a soma
receptive region of the neuron cell body
what are dendrites
numerous shorter extensions of the neuron soma that receive electrical impulses
what is an axon
single, longer extension of the neuron soma that transmits a nerve impulse away from the cell body
What is a neuroglia
supporting cells; all the other cells found in the nerve system; divide by mitosis; nourish and maintain the neurons in the nervous system; non-conductive
what is the function of skeletal muscles
works with skeletal system to move body through space; creates heat; facial expressions
function of cardiac muscles
pumps fluid through heart
