System
How many bones are there in an adult skeleton?
206
What is the role of skeletal muscle?
responsible for the movement of the skeletal system
What is the function of a tendon?
attach muscle to bone
What is a suture? Where could you find one on the body? *
Sutures are like seams that join the bones in the skull together.
Where would I locate the iris in the human body?
the eye
Are bones dead? Explain your answer with supporting evidence. *
Bones are not dead. They have LIVING cells inside them constantly growing, absorbing nutrients, and/or making red blood cells.
What muscles are involuntary? Explain why?
Smooth and cardiac muscles. They must contract/perform without thought in order to keep the body functioning properly.
Where could you find a pivot joint?
a)the shoulder joint
b)the skull
c)the humerus and pelvis
b) the skull
What is the difference between a reflex and a reaction? *
A reaction is voluntary and a reflex is involuntary.
Name one part of the INNER ear.
Cochlea. This contains the nerves for hearing.
Vestibule. This contains receptors for balance.
Semicircular canals. This contains receptors for balance.
Name three functions of the skeletal system
To protect and support delicate internal organs
Works with the muscular system to provide body movement.
Framework/support for our posture
Explain Muscle Fatigue
Muscle fatigue is when the muscles in our body don't get enough ATP (energy for cells)
Select the types of joints in the human body.
Ball and Socket
hinge
gliding
pivot
At birth, babies' bones are not fully formed. What is in place of these bones?
Cartilage
What is 1?
Pinna
Explain the difference between a newborn's skull and an adult's skull.
A newborn's skull has more bones and sutures, is more flexible, and has a triangular gap near the top where the brain is exposed. An adult's skull has less and more stiff sutures and bones.
How are smooth and skeletal muscles different?
Smooth muscles make up organs, and most are INVOLUNTARY.
Skeletal muscles connect with bones to move our body, and they are VOLUNTARY.
What are the smallest bones in your body?
Ossicles
What bone is 5?
Femur
What is 7?
Cochlea
How many bones make up the FACIAL bones of the skull?
14
What are the three types of muscles?
Skeletal, Cardiac, and Smooth Muscle.
What bone is 15?
Scapula
What is an osteoblast?
large cell responsible for the synthesis and mineralization of bone during both initial bone formation and later bone remodeling. Osteoblasts form a closely packed sheet on the surface of the bone, from which cellular processes extend through the developing bone.
What is the difference between cones and rods of the eye?
Cones- detailed color vision, are concentrated near center.
Rods- more numerous and work in poor light.