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a/p lab
radius and ulna (forearm)
| Question | Answer |
|---|---|
| the proximal ends of the radius and ulna form a type of synovial joint called a _________ joint | pivot |
| the only type of movement possible at a pivot joint it _________ | rotation |
| the feature on the proximal end of the ulna that forms that forms the "elbow" is the _______ _________ | olecranon process |
| when naming the bones of the digits, a bone that articulates with a metacarpal is properly called a __________ _________ | proximal phalanx |
| when classifying bones on shape, all the bones of the wrist are classified as ______ bones | short |
| the muscle on the lateral side of the anterior portion of the forearm that acts to abduct the hand at the wrist is the __________ __________ __________ | flexor carpi radialis |
| the ______ process on the proximal end of the ulna fits into a cavity called the __________ __________ on the anterior surface of the humerus | coranoid; coranoid fossa |
| the trapezium and first metacarpal form a type of synovial joint called a _______ joint | saddle |
| movement in all planes is possible at a saddle joint but ________ is not possible | rotation |
| thin projections at the distal ends of the radius (lateral surface) and ulna (medial surface) are called the ___________ _________ | styloid process |
| the muscle of the upper arm that acts to extend the arm at the elbow is the ______ ________ | triceps brachii |
| the joint between the humerus and ulna is and example of a true ________ joint | hinge |
| when straightening the hinge joint of the elbow, the ______ _______ of the ulna tucks into the _______ _________of the humerus | olecranon process; olecranon fossa |
| the head of the radius is located on the _______ end of the bone, while the head of the ulna is located on the _______ end of the bone | proximal; distal |
| turning the palm of the hand up is called _________ while turning the plam of the hand down is called _________ | supination;pronation |
| the movements of pronation and supination are made possible by the pivot joint formed between the ___________ of the of the radius and the ______ ______ of the ulna | (proximal) head; radial notch |
| when classifying bones based on shape, all the bones of the arm as well as all the bones of the hand are classified as _______ bones | long |
| the muscle of the upper arm that flexes the arm at the elbow when the palm of the hand is pronated is the _________ | brachialis |
| the raised area just distal to the head of the radius is the ______ _______ | radial tuburosity |
| bending a joint is called _______ while straightening a joint is called __________ | flexion; extension |
| straightening a joint beyond its normal anatomical position is called _________ | hyperextension |
| the muscle on the medial side of the anterior portion of the forearm that acts to adduct the hand at the wrist is the __________ __________ _________ | flexor carpi ulnaris |
| the joints between most carpals and metacarpals as well as the joints between all metacarpals and phalanges are a type of synovial joint called a ___________ joint | condylar |
| the muscle of the upper arm that flexes the arm at the elbow when the palm of the hand is supinated is the ___________ _________ | biceps brachii |
| projections situated above the condyles on the humerus, called the medial and lateral _________, serve as attachment points for the flexor carpi and extensor carpi muscles | epicondyles |
| the muscle on the medial side of the posterior portion of the forearm that acts to adduct the hand at the wrist is the ___________ ________ __________ | extensor carpi ulnaris |
| the joints between adjacent carpals are all __________ joints | plane |
| anatomically plane joints are _________ joints so their degree of movement is classified as ______________ | synovial; diarthrotic |
| the muscle of the arm that inserts proximal to the styloid process of the radius and acts to flex the arm at the elbow is the ___________ | brachioradialis |
| the muscle group on the lateral side of the posterior of the forearm that acts to abduct the hand at the wrist is the __________ __________ ___________ | extensor carpi radialis (group) |
| the bone in the tip of your index finger is properly called the ________ _________ of the second digit | distal phalanx |
| ORIGIN- coracoid process, tubercle above glenoid cavity of scapula INSERTION- radial tuberosity ACTION- flexes forearm; supinates forearm and hand | biceps brachii |
| ORIGIN- anterior surface of the humerus INSERTION- coronoid process of the ulna ACTION- flexes pronated forearm | brachialis |
| ORIGIN- distal lateral end of the humerus INSERTION- surface of the radius proximal to styloid process ACTION- flexes forearm | brachioradialis |
| ORIGIN- lateral surface and lateral epicondyle of humerus INSERTION- proximal end of second, third metacarpals ACTION- extends, abducts hand at wrist | extensor carpi radialis group |
| ORIGIN- lateral epicondyle of humerus, ulna INSERTION- proximal end of fifth metacarpal ACTION- extention, adducts hand at wrist | extensor carpi ulnaris |
| ORIGIN- medial epicondyle of humerus INSERTION- proximal end of metacarpals 1-3 ACTION- flexes, abducts hand at wrist | flexor carpi radialis |
| ORIGIN- medial epicondyle of humerus, olecranon process of ulna INSERTION- 5th metacarpal, carpals ACTION- flexes, adducts hand at wrist | flexor carpi ulnaris |
| ORIGIN- tubercle below glenoid fossa, posterior surface humerus INSERTION- olecranon process of ulna ACTION- extends arm at elbow | triceps brachii |
Created by:
allijeli
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