Human Body Systems Review
Why must muscles work in pairs?
to extract/pull. **NEVER PUSH***
What is a flexor?
when a muscle joint closes.
What is an extensor?
when a muscle joint opens.
What is a joint?
where two bones meet.
What are the three main parts of a bone?
compact, spongy, periostium.
function of ligaments?
connect bone to bone.
function of tendons?
connects muscle to bone.
What is a muscle disorder?
dystonia
function of cartilage?
flexibility, support. (ears, nose)
How does the integumentary system help maintain homeostasis?
it produces sweat when the body needs to cool down, maintains body temperature, and provides vitamins for bones (calcium)
How does the muscular system help maintain homeostasis?
it regulates temperature.
What organs make up the muscular system? (1)
muscles
What are the four main freely movable joints?
pivot- skull ball & socket- shoulder, hip hinge- elbow, knee saddle- thumb
How does the skeletal system help maintain homeostasis?
protects organs, replacing blood cells, mineral balance, movement.
What are the three types of muscle tissue?
skeletal- bones, voluntary, striated. smooth- digestive organs, involuntary, non striated. cardiac- heart, involuntary, striated.
What organs make up the integumentary system? (4)
skin hair glands nails
What is a skin disorder?
skin cancer
What is the difference between spongy bone and compact bone?
spongy bone is NOT soft, it has holes filled with bone marrow, while compact bone is much more dense.
What organs make up the skeletal system? (2)
bones connective tissue: -cartilage -ligaments -tendons
What are the three types of connective tissue?
-ligament -cartilage -tendon
What are the three main classes of joints?
-movable (skull) -slightly movable (back) -freely movable (elbow, wrist, thumb)
What are the five functions of the muscular system?
1. produce movement 2. maintain posture & body position 3. support soft tissue 4. guard body entrences and exits 5. maintains body temperature.
What are the functions of the integumentary system? (3)
1. protection 2. temperature regulation 3. vitamin production
what are the functions of the skeletal system? (6)
1. support & structure 2. protection 3. shape 4. movement/ muscle attachment 5. stores minerals 6. makes red blood cells
What is a skeletal disorder?
arthritis