HUBS 191 Progress Test 1 ACTUAL Questions and CORRECT Answers
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Course
HUBS 191 Progress
Institution
HUBS 191 Progress
HUBS 191 Progress Test 1 ACTUAL
Questions and CORRECT Answers
What makes up the axial skeleton? - CORRECT ANSWER- skull, vertebral column, rib
cage
What is recruitment? - CORRECT ANSWER- activating more motor units to make more
force
What are flat bones? - CORRECT ANSWER- Thin plates of co...
HUBS 191 Progress Test 1 ACTUAL
Questions and CORRECT Answers
What makes up the axial skeleton? - CORRECT ANSWER- ✔✔skull, vertebral column, rib
cage
What is recruitment? - CORRECT ANSWER- ✔✔activating more motor units to make more
force
What are flat bones? - CORRECT ANSWER- ✔✔Thin plates of compact bone - some
cancellous
What are flat bones used for? - CORRECT ANSWER- ✔✔protection and muscle attachment
What are irregular bones? - CORRECT ANSWER- ✔✔Variable in shape size and function
What is depolarisation? - CORRECT ANSWER- ✔✔Membrane potential becomes less
negative
what causes depolarisation? - CORRECT ANSWER- ✔✔Na+ enters the cell
What are the features of the saddle joint? - CORRECT ANSWER- ✔✔- biaxial
- flexion and extension
- abduction and adduction
- circumduction
- opposition
- e.g. carpometacarpal joint (thumb)
What does skeletal muscle do? - CORRECT ANSWER- ✔✔- develop force
- control posture
- resist movement of joints
,- under voluntary control
- provide support and protection for soft internal organs
- voluntary control over major openings
- converts energy (in part) to heat to maintain core temperature
- provide a major store for energy and protein
What is membrane potential typical value? - CORRECT ANSWER- ✔✔-70mV
What maintains the membrane potential? - CORRECT ANSWER- ✔✔sodium potassium
pump
what does a neutraliser muscle do? - CORRECT ANSWER- ✔✔eliminate an unwanted
movement caused by another muscle
What is hypotonic? what does it cause? - CORRECT ANSWER- ✔✔too much water in ECF
causes cell to swell
what is a continuous variable? - CORRECT ANSWER- ✔✔a variable that can take on any
value
where is the pubis located? - CORRECT ANSWER- ✔✔anterior aspect of the pelvic girdle
articulates with the other pubis to form the pubic symphysis
what is the structure of fibrocartilage? - CORRECT ANSWER- ✔✔collagen fibres form
bundles throughout matrix
orientation of fibres align with stresses
function is to resist compression and tension
what is plantar flexion? - CORRECT ANSWER- ✔✔toes pointing to the ground
how is contraction of a muscle terminated? - CORRECT ANSWER- ✔✔Ca2+ levels fall in
sarcoplasm
, what is a categorical variable? - CORRECT ANSWER- ✔✔can summarise variables into
categories or groups
what is inversion of the foot? - CORRECT ANSWER- ✔✔sole of foot faces towards midline
what are the features of the ball and socket joint? - CORRECT ANSWER- ✔✔- multiaxial
- flexion and extension
- abduction and adduction
- circumduction
- rotation
- e.g. shoulder and hip
what are the conditions of the 2008 Human Tissue Act? - CORRECT ANSWER- ✔✔1.
voluntary donation of bodies
2. requires dual signed consent by donor and immediate family member
3. most bodies are held for ~18 months, parts can be held longer for teaching and research
what is the primary centre of ossification? - CORRECT ANSWER- ✔✔diaphysis or shaft
what happens once ADP and Pi are released from the myosin head? - CORRECT ANSWER-
✔✔the myosin head flexes causing the power stroke
how does the myosin head become recocked? - CORRECT ANSWER- ✔✔myosin ATPase
hydrolyses ATP to ADP and Pi
what are the three types of muscle action? - CORRECT ANSWER- ✔✔concentric, isometric,
eccentric
what does a third class lever do? - CORRECT ANSWER- ✔✔provide a large range of
movement and speed, i.e flexion at elbow joint
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