Digestive/Immune
What is mechanical digestion?
Physical break down of food
hat are the main structures of the circulatory system?
Heart, blood vessels, blood
What hormone lowers blood glucose levels?
Insulin
What type of nerves carry signals to the brain?
Afferent Nerves
How does the number of bones change from infancy to adulthood?
Infants have about 300 bones, Adults 206
What do proteins, fats, and carbs get broken down into?
amino acids, fatty acids, and glucose
Name the four chambers of the heart.
Left atrium, right atrium, left ventricle, right ventricle
What gland produces cortisol?
Adrenal Gland
Branch-like structures that receive electrical signals from other neurons.
Dendrites
: What is the process of blood cell formation called?
Hematopoiesis
What are B cells?
Cells that produce antibodies
What type of blood vessels carry blood away from the heart?
Arteries
What hormone is produced by the pancreas?
Insulin
Send signals to voluntary muscles (things you control consciously, like moving your arm or leg).
Somatic Nerves
What are the three types of muscles in the human body?
Cardiac, Smooth, and Skeletal
What are antibodies?
Proteins that help fight infections and attatch to antigens
What is the function of red blood cells?
Carry oxygen throughout the body
This gland regulates metabolism through hormones like thyroxine?
Thyroid Gland
What layer of skin contains blood vessels and nerves?
Dermis
hat type of muscle moves without conscious control?
Involuntary Muscles
What are enzymes?
Proteins that cause a chemical reaction to speed up
What protein in red blood cells carries oxygen?
Hemoglobin
Where are the adrenal glands located?
Above the kindeys
What is keratin's role in the body
Protects body from stress or damage
What is the difference between a strain and a sprain?
A strain affects muscles or tendons, while a sprain affects ligaments.