Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Science ch 13 Vocab
6th grade
| Term | Definition |
|---|---|
| alveoli | the microscopic air sacs found in the lungs; gas exchanges in the lungs here |
| chyme | the thick acidic liquid mixture made of partially digested food in the stomach;mixture in the stomach made during the digestive process |
| pyloric sphincter | the contents of the stomach must pass through this muscle before entering the small intestine |
| villi | the tiny fingerlike projections that line the surface of the small intestine; helps with the absorption of nutrients; as the surface area increases, the rate of absorption increases |
| peristalsis | the involuntary muscular contractions that move food through the digestive tract; if it did not occur food would stay lodged in the body |
| tendon | the connective tissue that attaches muscle to bone |
| cartilage | the dense connective tissue that covers the ends of bones in a joint; it protects bone from grinding together |
| sternum | the breastbone located in the middle of the chest |
| neuron | the basic unit of the nervous system; a nerve cell; 3 main parts: cell body, axon, & dentrite |
| medulla oblongata | the lower portion of the brain stem; responsible for controlling basic life functions such as: respiration, swallowing, heartbeat, and digestion, |
| optic nerve | a cranial nerve that carries visual stimuli from the retina (eye) to the brain;visual stimuli get to the brain through these |
| capillaries | the tiny vessels that carry the blood from the arteries to the cells;blood leaves arteries and travels through these tint vessels to the cells |
| smooth muscle | involuntary muscles that line internal organs |
| skeletal muscles | voluntary muscles that hold the skeleton together and tire easily; such as the biceps |
| cardiac muscle | the muscle found only in the heart |
| central nervous system | made up of the brain and the spinal cord; it receives, processes, & initiates responses |
| peripheral nervous system | composed of the nerves which carry impulses to and from the brain |
| esophagus | connects the throat with the stomach |
| kidney | filters blood and makes urine |
| large intestine | feces (poop) are formed here |
| small intestine | most nutrient absorption takes place here |
| vertebral column | protects the spinal cord |
| auditory nerve | a cranial nerve that carries impulses from the inner ear to the brain |
Created by:
1015011486
Popular Biology sets