The muscles of the trunk and neck
Sternocleidomastoid, erector spinae, abdominals, latissimus dorsi and diaphragm: holding, turning and breathing.
- 27 cards
- 5 topics
- Free
The outline, topic by topic
Each topic is weighted the way the exam weighs it.
- Concepts
- On the body
- Sort and link
- Scenarios
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A few cards from the deck
Erector spinae: what is it?
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Muscle columns on each side of the spine, from the neck to the sacrum.
They straighten the trunk and hold it upright.
In a plank, which deep muscle tightens the belly and protects the lower back?
- Transversus abdominis
- Rectus abdominis
- External oblique
- Erector spinae
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Transversus abdominis
It acts like an internal belt.
Rectus abdominis: what is it?
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A vertical muscle at the front of the belly, from sternum to pubis, crossed by tendinous intersections.
The "six-pack": it flexes the trunk.
Why are the obliques key in a throw?
- They hold the scapula against the chest during the cocking phase
- They pass the pelvis's rotation on to the trunk and arm
- They extend the standing hip to push against the ground
- They pull the throwing arm down and forward
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They pass the pelvis's rotation on to the trunk and arm
The throwing chain runs from the legs to the arm through the trunk.