Level 2
59 words 0 ignored
Ready to learn
Ready to review
Ignore words
Check the boxes below to ignore/unignore words, then click save at the bottom. Ignored words will never appear in any learning session.
Ignore?
Digestive system function
Breaks down food into small pieces that can be used for energy and growth.
Mechanical digestion
Physically breaking food into smaller pieces, without breaking apart any molecules
Chemical Digestion
Breaking apart large molecules into smaller molecules by using acid or enzymes.
Mouth
Food is mechanically digested by the teeth, chemically digested by saliva
Esophagus
Food is pushed toward the stomach by peristalsis waves
Stomach
Food is mechanically digested by churning, chemically digested by acid
Small Intestine
Nutrients are absorbed into the body
Large intestine
Water is absorbed into the body
Rectum
Feces is stored
Anus
Feces exits the body
Liver
Secretes bile into the small intestine to help digest fats
Respiratory system function
To move oxygen into the body and remove carbon dioxide from the body.
Nose
warms and cleans air
Trachea
carries air to the lungs
Lung
main organ of the respiratory system
Bronchi
branches at the end of the trachea that lead to lungs
Alveoli
small air sacs where oxygen diffuses into the blood and carbon dioxide diffuses out
Diaphragm
muscle that inflates and deflates the lungs
Circulatory system function
To move blood containing oxygen, nutrients, and waste around the body.
Heart
The main organ that pumps blood around the body
Blood vessels
The tubes that blood and nutrients flow through
Arteries
Large blood vessels, carries blood high in oxygen away from the heart.
Veins
Large blood vessels, carries blood low in oxygen toward the heart.
Capillaries
Very small blood vessels, carry blood to individual cells
Plasma
The liquid part of blood
Red blood cells
The cells that carry oxygen around the body
white blood cells
Cells that defend against bacteria and viruses
Platelets
Very small cells that help blood clot at cut/wound sites
Musculoskeletal system function
To support the body, allow motion, and protect vital organs
Skeletal
attached to bones, voluntary
Cardiac
heart, involuntary
Smooth
digestive tract, involuntary
Bones
Provide stiff structure to the body
Bone marrow
Prodcues blood cells
Joint
The point of connection between two or more bones
Cartilage
Cushion between bones
Tendons
Connects bone to muscle
Ligaments
Connect bone to bone
Nervous system function
To send electrical signals around the body to regulate ALL of the body’s functions.
Brain
Control center of our body functions
Spinal cord
Connect brain with the rest of the body
Nerves/neurons
Cells that send electrical impulses (messages) though the body
Sensory
Detect sensory input (light, temperature, sound, etc.)
Motor
Trigger muscle contractions
Interneurons
Send messages between nerves
Immune system function
To protect the body against foreign invaders by identifying and destroying foreign material.
Antibodies
proteins that attach to foreign material and “flag” them for destruction
White blood cells
cells that allow the body to remember, recognize, and destroy previous invaders.
Lymph nodes
small structures that filter out and kill harmful germs in the body. They are full of white blood cells.
Urinary stsem function
To remove liquid waste from the body.
Kidneys
filter liquid waste from the blood and create urine
Bladder
Stores urine
Urethra
the tube that carries urine out of the bladder
Endocrine system function
To release hormones (message molecules) into the blood to regulate body processes and respond to environmental changes.
Pituitary galnd
master gland that controls all the other glands; makes growth hormones
Thyroid
regulates metabolism (processing your food)
Adrenal galnd
makes the “fight or flight” hormone adrenaline
Pancreas
produces hormones that regulate your blood sugar
Testes/ovaries
produce hormones that control reproductive processes
