Homeostasis
The body's actions and responses that help keep internal conditions stable are called...
homeostasis
joints
The outside of bones is made of a dense layer called _____________ bone.
compact
List at least 3 functions of the skeletal system
1) support and structure
2) protect vital organs
3) produce blood
4) provide levers for muscles to pull on
After you are done growing, your bones are still have living cells that are fed by blood vessels throughout each one. (True/False)
true
Homeostasis is maintained by various methods the body can use to return the body to a set point after some variable gets too high or too low. Any pathway that minimizes or reverses change is called ___________ __________.
negative feedback
Bones are held to other bones in a joint with connective tissue called _______________.
ligaments
The inside of large bones is made of bone with spaces. This helps make bones slightly flexible and decreases weight. This is called _____________ bone.
spongy
Bones are continuously being broken down and rebuilt. ________________ can simulate this action throughout life by creating tiny damages, leading to stronger bones.
exercise
When the body reacts to things it thinks MIGHT be dangerous, those reactions are called ______________.
stress
During childbirth, positive feedback kicks in which takes the body _____________ from normal
further
Joints are cushioned by a rubbery tissue called _______________.
cartilage
Inside the bones is a soft tissue called _____________. The version of this that makes blood is _____________ is color.
marrow, red
The process of bones being broken down and rebuild on the cellular level is called bone ______________.
remodeling
Stress causes the body to produce _____________, a hormone.
adrenaline
Explain why a person might look pale or blue when exposed to cold for extended periods.
The blood vessels constrict near the skin, keeping blood and heat close to vial organs
The shoulder would be considered a ___________ joint, while the joints between bones of the skull are _______________.
moveable, immoveable
osteoporosis
When you are born, your bones are made of _____________.
cartilage
Adrenaline causes the body to make a few changes, that would help the body perform in a dangerous situation. Name 2 of these changes.
2) faster breathing
3) sweating
Blood sugar is maintained via several homeostatic pathways. Name a hormone involved in this process.
insulin, glucagon
Over time, cushioning tissue breaks down in peoples joints, which can lead to pain. This is one cause of the disorder called _____________.
arthritis
Which TWO minerals are stored in the hard parts of bones?
calcium and phosphorous
Explain WHY the body might steal calcium from the bones.
The body may steal calcium from the bones in order to maintain homeostasis of calcium in the BLOOD, which is vital for nerve and muscle function