Warm up 5/5
• Tomorrow we will meet in Rm 151
– 2nd science room from front of the school
• Take the histology lab and turn to page 3.
– Come to the front and get 1 microslide viewer and
one microslide strip. (Groups of 2)
– Look at 3 different slides. Draw pictures of the
slides in the field of views provided on page 3 of
the lab.
– Answer questions 10-14
– Must clean up by 2:00 pm
MUSCULAR SYSTEM II
PP. 920-922
MUSCLE STRUCTURE CONT.
• Ligaments connect joints
• Tendons connect muscle
to bone
• When the muscle moves,
the bones move, and the
joint bends
MUSCULAR MOVEMENT
•
Muscles arranged in opposing pairs and
while one relaxes the other contracts
flexor: contraction bends the joint
extensor: contraction straightens the joint
MUSCLE FATIGUE
• The inability to contract the muscle due to the
lack of ATP
RED= Important
BLACK = Write Down
BLUE = Don’t write down
SKELETAL SYSTEM
for dummies
pp 911-916
FUNCTION
•
•
•
•
•
Bones support muscles and organs
produce red and white blood cells
gives shape and structure to the body
protects internal organs
store minerals
SKELETON
• Axial –the skull, face, vertebral column, and
rib cage.
• Appendicular –the arms and legs, pelvis,
scapula, collar bone, etc
• bones and their associated tissues (cartilage
and ligaments) make up the skeletal system to
support the body
BONE STRUCTURE
• porous and made of
proteins and minerals
• osteocytes –cells that
make bone
• bone marrow – soft
bone tissue that
produces platelets
and blood cells
BONE DEVELOPMENT
• develop from cartilage (tough flexible
connective tissue)
• ossification: hardening of bone cartilage
• elongation at the end of bones
JOINTS
• place where two bones
meet
• Fixed: no movement between bones (ex.
skull).
• Semimovable: limited movement (i.e. rib cage
and vertebrae)
• Movable
1. hinge – knee and knuckle
2. pivot – skull joins the vertebral column
3. ball-and-socket – hip
4. gliding – wrist and ankle (slide over one
another)
JOINT STRUCTURE
• cartilage between joints for cushion
• ligaments connect joints (bone to bone)
• Quiz Tomorrow
• P 922 # 9, 10 (Due Tues)
• Look at p 929 #7. Define parts of picture 1-4.
– Is this muscle elongated or contracted? (Due
Tues)
•
•
•
•
Problems p 922 # 5-7 Due Wednesday
Physiology Study Guide Due Thursday
Histology Lab (Due Friday)
Exam Friday: Intervention Wed & Thur