This many cells rub off your epidermis every time you take a shower
What is thousands (will except any number over 999)
100
Which muscles are voluntary?
What is skeletal
100
Humans have ?? bones as adults than they did at birth
What is fewer
100
The peripheral nervous system connects what?
What is your brain and spinal cord to the rest or your body
100
When light enters your eye it passes through which two parts in order?
What is cornea and then lens
200
The more melanin that is present in skin the ? the skin color
What is darker
200
which joint turns your head
What is pivot
200
Red blood cells are produced where?
What is in the red bone marrow
200
how does an impulse move through a neuron (three parts)
What is dendrite - cell body - axon
200
which joint is used most in your body
What is gliding
300
You can feel pain beacuse nerve cells in your skin relay information to what?
What is your brain
300
which joint is in your elbows and knees
What is hinge
300
What is the tough band of tissue that holds bones together at joints called
What is ligament
300
What is the basic unit of the nervous system
What is neuron
300
when an object vibrates it produces what needed for hearing sound?
What is soundwaves
400
When the skin is damaged how does it repair itself? (two parts)
What is the epidermis produces new cells and the dermis repairs tears.
400
what reduces friction and allows bones to slide eaily over each other
What is cartilage
400
what is the strong hard layer of the bone called
What is compact bone
400
which structure in your eye directs light to the back of the eye?
What is lens
400
sensory receptors for smell are called?
What is olfactory cells
500
List 5 functions of your skin
What is protection, sensory response (nerve impulses), formation of vitamin D(absorb calcium), regulation of body temperature, and elimination of waste (sweat)
500
how are immovable joints different from moveable and give an example of each
What is immovable allow little or no movement (like your skull) and moveable allow movement (pivot - head, ball&socket - shoulder, hinge-elbow/knee, gliding-wrist/ankle/vertebrate
500
Name the 5 functions of the skeletal system
What is give shape and support, protect internal organs, major muscles attach to give movement, blood cells are formed in red marrow, clacium and phophsorous are stored for later use
500
which structure of the eye contains rods and cones
What is retina
500
what are the 3 muscle types and where found?
What is cardiac - heart, smooth - internal organs/veins, skeletal - bones