Paper 2 IB Exam SEHS Questions With Correct Answers
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Course
IB SEHS
Institution
IB SEHS
Paper 2 IB Exam SEHS Questions With
Correct Answers
Function parts of vertebrae - answerBody - 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 sh...
BRIGHTSTARS EXAM STUDY SOLUTIONS 8/15/2024 2:05 PM
Paper 2 IB Exam SEHS Questions With
Correct Answers
Function parts of vertebrae - 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 - answer✔✔support the head,
protect spinal cord,
transmit weight from body to legs,
attachment points for ribs and muscles of back
functions of skeleton - answer✔✔protection of vital organs, support and maintain posture,
storage and release of minerals, blood cell production, lipid energy storage
types of bones - answer✔✔long, short, flat, irregular
factors affecting joint stability and range of motion - answer✔✔shape of bones, area of
intersection, flexibility of ligaments, influence of surrounding soft tissue
types of joints - answer✔✔fibrous, cartilaginous, synovial
function parts of synovial joint - answer✔✔articular cavity, articular cartilage, articular capsule,
synovial membrane, synovial fluid
menisus
bursae
meniscus - answer✔✔fibrocartilage
semilunar discs
allows bones fit tightly
bursae - answer✔✔small fluid-filled sacs where conflict of structures
lined by synovial membrane
lubricate reduce friction
different kinds of joints - answer✔✔gliding joint - flat
hinge joint - elbow
pivot joint - radioulnar
condyloid - radius + carpals
saddle - carbal metacarpal of thumb
ball and socket -shoulder
types of muscle - 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 - answer✔✔movement
move substances in body
stabilize and maintain body posture
body temperature (85)
properties of muscle - answer✔✔contractility
, BRIGHTSTARS EXAM STUDY SOLUTIONS 8/15/2024 2:05 PM
extensibility
elasticity
fascia definition - answer✔✔connective tissue surrounding groups of muscle that perform same
function innervated by same nerve
origin and insertion of muscle - answer✔✔tendon at end, connecting two joints. Attachment
point stay fixed is origin, point that moves is insertion
inspiration in respiratory system - answer✔✔diagram contracts down
external intercostal pull rib up & out
thoracic cavity volume increase, pressure decrease
expiration in respiratory system - answer✔✔diagraph relax
decrease volume
external intercostal relax
thoracic cavity volume decrease
pressure increase
minute ventilation - answer✔✔describes volume of air being exhaled per minute. Ve(L.min^-1) -
Vt(L.breath^-1) x Br(breaths.min^-1)
cardiovascular system - answer✔✔5 liters of blood
55% blood = plasma
platelets - answer✔✔assist repair of wounded tissue <1% of blood
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