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ComD 321
Test #1
Question | Answer |
---|---|
Where is striated msucle tissue found? | Boney Skeleon |
Striated muscle is voluntary or involuntary? | voluntary muscle |
Striated muscle can contract to.. | 1/2 of it's orginal size |
Smooth muscle is found where? | Viscera (guts) organs, and Cardiovascular systems vessels |
Smooth muscles is voluntary or involuntary | Involuntary |
Smooth muscle is striated or non-striated | non-striated |
Cardiac Muscle is found where? | Walls of the heart |
Cardiac muscle is voluntary or involuntary? | Involuntary |
Cardiac looks like? | Striated |
Compact | Dense outer layer -- hard |
Periosteum | outer covering of compact bone |
Marrow | Spongy inside of bones |
How many bones are in the human skeleton? | 206 |
Axial skull contains | hyoid bone, rib cage, vertebral column |
Appendicular-pectoral girdle contains | clavical, scapula, upper extermities, pelvic girdle. and lower extermities |
Matrix | Substance inside the bone that is mmixed with minerals (salts). It makes the bones hard |
Synarthrodial | Immoviable |
Amphierthrodial | Yeilding |
Diarthrodial | Freely moving |
Fibrous | EX. Cranial sutures |
Cartilaginous | Ex. Vertebral column |
Synovial Fluid | Protects the joint from impact and friction, Provides nourishment, lubricates the joint. |
Nervous tissue is made up of | Nerve cells --neurons |
Neurons are comprised of | Cell Body, Dendrites, Axon, Terminal |
Glial | acts as support cells of NS, Form myelin on the axons of neurons, |
Dendrites | Recieve electrical signals and conduct those signals toward the cell body |
Cell body | Houses the nucleus and a number of organelles critical to the function of the nuron |
Axon | projects off the cell body and transmits the electrical signal down the axon in one direction toward the terminal |
Terminal | Is adequately stimulated releases a chemical to carry the message to the next nearon in line |
Impulse | When the axon transmits information |
Synapse | Interactiong between the terminal and another neuron or muscle |
Myelin | Insulation covering found on axons, made of glial cells, significant to transmit signals rapidly |
Neurotransmitters | Chemical released by terminal. |
Why are neurotransmitters needed? | For contraction of the muscle to take place |
Neuromuschular synapse | Synapse between motor neurons and the muscles |
Motor unit | A given motor neuron and all the muscle fibers it intervates |
CNS | Brain and spinal cord |
PNS | Visceral and somatic |
Visceral can futher be divided into | motor and sensory |
Visceral motor can be divided into | sympathic and parasympathic |
Somatic can be divided into | motor and sensory |