Lesson 4 - Appendicular Skeleton I

Question 1

4 main regions of upper limb

Answer 1

Shoulder
Arm
Forearm
Hand

Question 2

Shoulder bones

Answer 2

Pectoral girdle section
-Clavicle
-Scapula

Question 3

Arm/forearm bones

Answer 3

Humerus
Radius
Ulna

Question 4

Hand bones

Answer 4

carpals, metacarpals, phalnages
Metacarpophalageal joints
interphalangeal joints (distal/proximal)

Question 5

Parts of the scapula ( lateral points)

Answer 5

Supra and infraglenoid tubercles that sit superior and inferior to the gelnoid cavity.

Glenoid cavity articulates with the humorous (ball and socket joint)

Question 6

Parts of the Clavicle

Answer 6

Acromial End (lateral side)

Shaft (midpoint)

Sternal end (medial side), articles with sternum

Question 7

Parts of the scapula (boarders and processes)

Answer 7

Boarders: Superior, Medial and Lateral

Coronoid process - projecting beak

Acromion end

Spine of scapula (postier)

Question 8

Notch/foramen of the scapula

Answer 8

Superscapula notch/foramen. On its own there is a notch in the superior side of the scapula. When ligaments are involved it becomes an opening due to its connective tissue.

Question 9

Fossa of scapula

Answer 9

Supraspinous fossa (postier + superior)

Infraspinous fossa ( postier + inferier)

Subscapular ( anterior + sub)

Question 10

Parts of the humerus (head)

Answer 10

head of humerus ( ball and socket joint for scapula)

Greater tubrecle (lateral)

lesser tubercle (medial)

Superior facet
Middle facet
Inferior facet (traffic lights)

Question 11

Parts of humerus (shaft)

Answer 11

Intertubercular groove
Radial Grove
Medial and Lateral lip of intertubercular groove

deltoid tuberosity

Question 12

Parts of humerus (base)

Answer 12

Medial/Lateral Epicondyle
Coronoid fossa (anterior)
Olecranon fossa (posterior)
Capitulum and Trochlea

Question 13

Glenohumeral joint

Answer 13

Synovial type of joint

Articular capsule - surrounds joint

Ligaments - strengthen joint

Synovial membrane - supports joint

Articular cavity - filled fluid space

Question 14

Radius

Answer 14

Laterally when pronated and medial when supernated

Superior: Head and neck of radius, radial tuberosity (anterior)

Body (shaft)

Inferior: Styloid process (lateral)

Joint:
Humeroraidal, superior, head of radius articulates capitulum of humorous

Interesses membrane of forearm is a connective tissues that connects radius and ulna

Question 15

Ulna

Answer 15

Laterally when supernated and medial when pronated

Superior: Trochlear notch, Coronoid process, Radial notch, ulnar tuberosity. Olecranon (postier)

Body (shaft)

Inferior: Styloid process (medial)

Joint:
Humeroulnar, superior, head of ulna articulates with trochlea of humorous

Cornoid fossa (humerus) and coronoid process (ulna) meet during flexion

Olecranon fossa (humerus) and olecranon (unla) meet during extension

Question 16

Digits 1-5

Answer 16

Digits 1 (medial) moves to 5 (lateral)

Question 17

Phalanges

Answer 17

Three types of phalanges. Distal, middle and proximal.

Thumb=Interphalangral joint
Other fingers= Distal Interphalangral joint (DIP) and Proximal Interphalangral joint (PIP)

Question 18

Metacarpals

Answer 18

Connecting bone in-between Phalanges and Carpals. Has a head and base

Uses the Metacarpophalangeal joint

Question 19

Carpals

Answer 19

Carpals connect the arm to the hand. 8 bones to it: So Long To Pinky, Here Comes The Thumb

Uses the Carpometacarpal joint and Radiocarpal joint.

Question 20

Flexor retinaculum

Answer 20

Is what creates the carpal tunnel and is a retaining band of connective tissue.