Bones
Name the 3 types of connective tissue which makes up the skeletal system
Bone, Ligaments, and Cartilage
Name the 3 types of muscle tissue found in the body
Skeletal, Smooth, Cardiac
Name the 2 parts of the nervous system
CNS and PNS
Define sensory adaptation
Some sensory receptors stop sending action potentials even though the original stimulus persists.
what is saltatory conduction
conduction leaping along myelinated neurons
Name the location in bone where red and white blood cells are made or manufactured
Red Bone Marrow
What ion initiates skeletal muscle contraction
calcium
What division of the nervous system provides information from the outside environment to the CNS
Sensory
What structure does the stapes vibrate in the ear
the oval window
List the 3 anatomical and functional divisions of the brain
forebrain, midbrain, hindbrain
Why do bones continue to lengthen during childhood and adolescences
growth plate in the epiphyses until late teens
What causes muscles fatigue
lactic acid build up from inadequate oxygen supply
what type of cells send information from the CNS to an effector
motor neurons
how are different pitches discriminated
hair cells in specific regions of the cochlea
What part of the brain is associated with conscious thought
cerebral cortex
Name 5 functions of bone
Support, Protection, Movement, Blood cell formation, Mineral Storage
Put the events of muscle contraction in order
1. T tubules transmit electrical impulses throughout the muscle cell.
2. Myosin contacts actin and pulls it toward the center of the sarcomere.
3. Acetylcholine binds to receptors on the muscle.
4. Troponin-tropomyosin complex shifts to expose myosin binding sites.
5. Calcium is released from the sarcoplasmic reticulum.
3, 1, 5, 4, 2
Name the 3 meninges which surrounds the CNS
Pia, arachnoid, dura
what causes nearsightedness and farsightedness
the length of the eyeball
what part of the brain is associated with emotions and behavior
the limbic system
Put the steps of bone repair in order: 1. Bone fracture 2. Fibroblasts migrate to area to begin repair process 3. Tough fibrocartilage callus is formed at site of fracture by chondroblasts 4. Hematoma forms at site of fracture 5. Osteoblasts deposit new bone in area of fracture 6. Repair process takes from weeks to months 7. Osteoclasts remove dead damaged bone and remnants of hematoma
1, 4, 2, 3, 7, 5, 6
List 3 activities fast twitch fibers are used for
sprinting, jumping, lifting weights
Explain the events occurring during depolarization and repolarization
Depolarization: sodium channels open and sodium moves into the axon making the inside more positive
Repolarization: sodium channels close, potassium channels open and potassium moves outside of the axon
The following is a list of structures in the eye through which light passes. Place the structures in the order in which light would pass through them.
1. lens 2. Pupil 3. Cornea 4. vitreous humor 5. retina
3, 1, 2, 4, 5
During synaptic transmission, the influx of ________ causes vesicles in the axon bulb to fuse with the cell membrane, releasing ________.
calcium, neurotransmitter