A muscle is attached to what fibrous bands of tissue? (a. tendons, b. ligaments)
a. tendons
In most joints, a bone is connected to another bone by what fibrous bands of tissue? (a. tendons, b. ligaments)
b. ligaments
This is the outermost layer of the skin. (a. epidermis, b. dermis, c. hypodermis)
a. epidermis
Why is the skin considered an excretory organ?
Skin excretes the wastes in our body through sweat.
What is mechanical digestion?
It involves physically breaking the foods into smaller pieces through chewing with our teeth.
State the breathing cycle.
nose-pharynx-trachea-bronchus-bronchioles-alveoli
This tube is also known as windpipe.
trachea
These are tiny pouches in the lungs where exchange of gases takes place.
air sacs/alveoli
This is a thin sheet of muscles below the lungs.
diaphragm
What is the main organ of the excretory system?
kidneys
These are tubes through which blood moves.
blood vessels
How long does a blood take to move around the body?
1 minute/60 seconds
It binds oxygen and gives blood a red color.
hemoglobin
What are the two parts of the nervous system?
CNS (Central Nervous System) and PNS (Peripheral Nervous System)
This help sort messages and channel them to the correct part of the brain.
brain stem
State the cycle of the digestive system.
mouth-esophagus-stomach-small intestine-large intestine-rectum-anus
