ch 27
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Build a table that lists the 12 major human systems, their functions, major organs involved, and an example of another system with which it works.
Integumentary Muscular Skeletal Nervous Circulatory Lymphatic Respiratory Endocrine Urinary/excretory Reproductive Digestive
Which system communicates using neurons?
nervous
Which system communicates using hormones? What kind of molecules are they called?
Endocrine / signaling & communicating molecules
What is the function of cartilage?
Provides flexibility instead of bones; provide smooth surface for joints
What is the condition where the bones become porous?
osteoporosis
What is the condition where the bones joints become inflamed?
arthritis
What are the main parts of the skeleton?
Skull Rib cage Vertebral column Limbs pelvis
What are the parts of the spine?
vertebrae vertebral disks Vertebral column
What is the area called where one bone meets another?
joint
What action do muscles complete?
Pull/ contraction
What connects bone to bone?
ligaments
What connects bone to muscle?
tendons
What are the types of marrow?
Red- makes red blood cells yellow- stores lipids
What are the functions of skin?
Homeostasis and protection from foreign invaders
What is the main function of the skull?
protect brain
Give examples of hinge joints
elbow, knee
Give examples of pivot joints
vertabrae
Examples of ball and socket joints
hip, shoulder
What do ligaments and tendons do?
Ligaments- bone to bone Tendons- muscle to bone
What are the thin filaments of a muscle?
Actin
What are the thick filaments of a muscle?
Myosin
What is cardiac muscle
Heart muscle- striated and involuntary
What makes up a sarcomere?
Actin and myosin
What happens during a sarcomere contraction?
Filaments slide over each other, sarcomere gets shorter Myosin heads attach to actin wall and push on both sides causing a contraction