52 terms

USJ 2018-2019 - Week 5 Science Vocabulary

STUDY
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signals
- messages sent from brain to nerves
synapse
- place where nerve messages are sent and received
relay
- to transmit a signal
extend
- to increase in length
involuntary
- muscle controlled without thinking about it (pumping heart)
ligaments
- tissues that connect bones, hold organs in place
muscles
- tissues that cause motion in the body when contracted
cardiac muscle
- type of muscle in the heart
musculoskeletal
- muscular and skeletal systems
skeletal muscle
- muscle connected at either end with a bone
smooth muscle
- found in the walls of internal organs, blood vessels, hair follicles
tendons
- connects muscle to bone
skeleton
- framework that support the body
Organ
- Similar tissues with a specific function
Inherited traits
- Characteristics passed down through genes given to you by parents
Trait
- distinguishing characteristics
Characteristics-
quality of an organism
DNA-
material in life forms that transfers genetic characteristics
Inherited
-characteristics from parents
Likeness
similarity in appearance or nature between persons or things
Organism
- individual living system
parents
organisms that produce offspring
Offspring
- the young/babies of a person, animal or plant
Generations
- a group of individuals born or living at the same time, such as siblings.
Cell
- the basic unit of life
Multicellular
- composed of several of many cells
Learned Behavior
- A skill you learn through experience such as walking, language, sports...
Unicellular
- composed of one cell
Permeable
- able to pass through
Tissues
- similar cells with a specific function
bones
- forms the substance of a skeleton, support the body
cranium
- skull
femur
- longest, largest, and strongest bone in the human body; located in the leg
cartilage
- flexible connective tissue
fracture
- to break or crack
joints
-place where two parts are joined or united to allow motion
voluntary
- muscle whose action is controlled by the person (example: lifting an arm)
humerus
- long bone in arm extending from the shoulder to the elbow
flex
- to bend
contract
- to draw together
Autonomic Nervous system
- system of nerves that control involuntary functions
axon
- part of neuron that takes information away from a cell body
brain
- controls mental and physical actions, located in the cranium (skull)
brain stem
- part of brain near spinal cord; controls reflexes, breathing, and heartbeat
cerebellum
- large portion of the brain, controls voluntary motions
Immovable joint
- not able to be moved
cerebrum
- largest part of the brain, controls voluntary movements and mental actions
dendrites
- part of a neuron that brings information to a cell body
nerves
- bundle of fibers that send impulses from the brain to other parts of the body
neurons
- specialized, impulse-conducting cells (composed of cell body, axon, dendrites)
spinal cord
- cord of nerve tissue extending through the spinal column
stimuli
- something that causes an action (example-stimulus: hot stove, response: moving hand away from hot stove)
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