Paper 2 IB Exam SEHS UPDATED
ACTUAL Exam Questions and CORRECT
Answers
function parts of vertebrae - CORRECT ANSWER - Body - flattest part of each vertebrae
Vertebral foramen create canal
Intervertebral disc make column flexible and flatten bulge when compressed, Curvature
increases strength, maintain balance and absorb shock
general functions of vertebrae - CORRECT ANSWER - support the head,
protect spinal cord,
transmit weight from body to legs,
attachment points for ribs and muscles of back
functions of skeleton - CORRECT ANSWER - protection of vital organs, support and
maintain posture, storage and release of minerals, blood cell production, lipid energy storage
types of bones - CORRECT ANSWER - long, short, flat, irregular
factors affecting joint stability and range of motion - CORRECT ANSWER - shape of
bones, area of intersection, flexibility of ligaments, influence of surrounding soft tissue
types of joints - CORRECT ANSWER - fibrous, cartilaginous, synovial
function parts of synovial joint - CORRECT ANSWER - articular cavity, articular
cartilage, articular capsule, synovial membrane, synovial fluid
menisus
bursae
,MGRADES
articular cartilage function - CORRECT ANSWER - cover articulating surfaces
reduce friction
absorb shock
protect bones
articular capsule function - CORRECT ANSWER - prevent dislocation
surrounds joint
form ligaments
synovial membrane & fluid - CORRECT ANSWER - secretes synovial fluid
lubricates joint cavity
supplies nutrients to cartilage
meniscus - CORRECT ANSWER - fibrocartilage
semilunar discs
allows bones fit tightly
bursae - CORRECT ANSWER - small fluid-filled sacs where conflict of structures
lined by synovial membrane
lubricate reduce friction
different kinds of joints - CORRECT ANSWER - gliding joint - flat
hinge joint - elbow
pivot joint - radioulnar
condyloid - radius + carpals
saddle - carbal metacarpal of thumb
ball and socket -shoulder
, MGRADES
types of muscle - CORRECT ANSWER - skeletal - voluntary, striated, tendon to muscle
to bone, movement
cardiac - involuntary, intercalated disks, striated
smooth - lines blood vessels, involuntary, not straited
4 functions of muscle - CORRECT ANSWER - movement
move substances in body
stabilize and maintain body posture
body temperature (85)
properties of muscle - CORRECT ANSWER - contractility
extensibility
elasticity
fascia definition - CORRECT ANSWER - connective tissue surrounding groups of muscle
that perform same function innervated by same nerve
origin and insertion of muscle - CORRECT ANSWER - tendon at end, connecting two
joints. Attachment point stay fixed is origin, point that moves is insertion
inspiration in respiratory system - CORRECT ANSWER - diagram contracts down
external intercostal pull rib up & out
thoracic cavity volume increase, pressure decrease
expiration in respiratory system - CORRECT ANSWER - diagraph relax
decrease volume
external intercostal relax
thoracic cavity volume decrease
pressure increase