Biomechanics
Upper Extremity
Lower Extremity
Systems
OIAs
100
All lever systems are made up of these three components
What is axis, force, and resistance?
100
What is the most moveable joint of the shoulder girdle?
Sternoclavicular joint (SC)
100
What bones make up the talocrural joint?
Distal tibia/fibula, talus
100
How many bones are in the adult skeleton?
206
100
Serratus Anterior Origin
Ribs 1-9
200
An example of a first class lever
What is a seesaw/crowbar/scissors/triceps?
200
Name the 8 carpal bones of the wrist
Scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate
200
What three muscles make up the hamstrings?
Biceps femoris, semitendinosus, semimembranosus
200
What structures connect bone to bone?
Ligaments
200
Supraspinatus Insertion
Greater tubercle of humerus
300
An example of a second class lever
What is a wheelbarrow/nutcracker/plantarflexor?
300
Name 5 of the 8 muscles of the elbow
Biceps Brachii, Brachioradialis, Brachilis, Triceps Brachii, Anconeus, Pronator Teres, Pronator Quadratus, Supinator
300
What three muscles make up the pes anserine?
Gracilis, sartorius, semitendinosus
300
The adult skeleton is divided into two parts. What are they?
Axial and appendicular
300
Brachioradialis Action
Forearm supination/pronation, elbow flexion
400
An example of a third class lever
What is an oar/shovel/biceps?
400
What 4 muscles make up the rotator cuff?
Supraspinatus, infraspinatus, teres minor, subscapularis
400
What 4 muscles make up the quadriceps?
Rectus femoris, vastus lateralis, vastus medialis, vastus intermedius
400
Give an example of how a muscle can "reverse its action"
Pull up vs Lat pulldown
400
Flexor Digitortum Superficialis Insertion
Middle Phalanx of digits 2-5
500
Name and explain Newton's 3 laws of motion

Law of inertia: a body in motion tends to stay in motion

Law of acceleration: a change in acceleration of a body occurs in the same direction as the force that caused it

Law of action-reaction: for every action there is an opposite and equal reaction

500
What 6 shoulder joint muscles perform shoulder adduction?
Deltoid, pectoralis major, latissimus dorsi, teres major, coracobrachialis, subscapularis
500
Name the 7 two joint muscles of the HIP
Rectus femoris, sartorius, gracilis, biceps femoris, semitendinosus, semimebranosus, tensor fascia latae
500
What are the 6 types of diarthroidal joints?
Plane/gliding, hinge, pivot, condyloid, saddle, ball and socket
500
Satorius Action
Hip flexion, external rotation, knee flexion
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