Integumentary System
What parts of the body are included in the Integumentary System?
Skin, hair and nails
What is our skeletal muscle for?
Movement
What would we look like if we didn’t have any bones?
A big, fleshy blob
Why did our breathing and heart rates increase when we were exercising?
To get more oxygen in and through our body.
What is the main task of the nervous system?
Communication throughout our body, center of all mental activity, regulate and mantain homeostasis.
How many dead skin cells do we shed each minute?
About 50,000 flakes
Where is the cardiac muscle found?
The heart
What do our ligaments and tendons do?
Ligaments bind bone to bone and tendons bind muscle to bone.
How much blood does our heart pump daily?
About 1900 gallons
What makes up the Central Nervous System?
Brain and Spinal Cord
What are the three layers of the skin?
Epidermis, Dermis, Hypodermis
What is the most powerful muscle we have in our body?
The masseter (cheek to jaw)
What do we have in our bones?
Spongy tissue, bone marrow, compact bone
What does the epiglottis do?
Closes over trachea when swallowing food
What are the cells that are found in the nervous system?
Nerve cells (neurons)
What are the main tasks of the Integumentary System?
Protection, keeps fluids in, touch, temperature control, and waste removal
How many taste buds do we have on our tongue?
About 10,000
What materials do our bones store?
Calcium (Ca) and Magnesium (Mg)
What are the alveoli?
Tiny air sacs in the lungs that help with gas exchange? Fun fact: total surface area of the alveoli is the size of a tennis court.
What does the Cerebellum in our brain do?
Responsible for balance and coordination
What is the pale half-moon area on your fingernail called?
The lunula
Where is our gastrocnemius?
It’s our calf muscle
What are the four types of joints we have?
Hinge (elbow and knee), Pivot (neck), Saddle (Thumb), Ball and Socket (Shoulder and Hip)
What are the components of our blood? (bonus for percentages)
Plasma (about 55%), Red blood cells (about 45%), White blood cells and platelets (about 1%)
Why is the brain folded?
In order to fit inside the skull