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BSC2085- Final Exam PBSC Questions and Answers
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BSC2085- Final Exam PBSC
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BSC2085- Final Exam PBSCSynthroid Joint - answer Joint with no movement
Ex: Suture
Diarthrosis Joint - answer Freely movable joint
synovial fluid functions - answer1. lubrication
2. nutrient distribution
3. shock absorption
opposition - answer Movement of the thumb to touch the fingertips
protraction - answer moving a body part forward
Ex: Jaw Bone
acetabular labrum - answer rim of fibrocartilage
Which muscle attaches to the radial tuberosity - answer biceps brachii
Radial Tuberosity contraction produces supination of ________________ and
______________ at the elbow - answer Supination, Flexion
6 knee joint supporting structures - answer1. Quadricep Tendon
2. Lateral Collateral Ligament
3. Medial Collateral Ligament
4. Popliteal Ligament
5. Medial and Lateral Menisci
6. Intracapsular Ligament
What happens when articular cartilage is damaged? - answerRough, bristly collagen
fibers on the surface
increase in amount of friction
further damage caused
Where are blood vessels and nerves found? - answerPerimysium
Epimysium - answerincircles entire muscle belly
Endomysium - answergoes around each individual muscle fiber
, Tendons are made up of what? - answerEpimysium, perimysium, endomysium
Penninate muscle - answerFibers at an angle
convergent muscle - answerpulls in different directions; each muscle fiber contracts by
30%
myoblasts - answerembryonic cells
multinucleate - answerimportant for protein production
sarcomeres - answerrepeating contractile functional unity
Z line - answerA dark thin protein band to which actin filaments are attached in a
striated muscle fiber, marking the boundaries between adjacent sarcomeres.
M line - answersupporting proteins that hold the thick filaments together in the H zone
I band - answerthin filaments only
A Band - answerthick and thin filaments
H band - answerthick filaments only
sarcoplasmic reticulum - answerstores and releases calcium
thin filaments - answerattach to z line
titin - answerelastic protein; recoils and responsible for elasticity
sliding filament theory - answerexplanation of how muscles contract
NA+ - answeroutside cell
K+ - answerinside cell
Which channels are open during repolarization? - answervoltage gated K+ channels
Action potential propagation - answerpropagated along plasma membrane
generated in less than 2 milliseconds
travels in one direction
happens in neurons and skeletal muscle
What happens without Acetycholine (ACh) - answerFlaccid paralysis
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