Anatomy Week 10

Question 1

What are the different movements at the joint

Answer 1

Flexion:
Extension:
Abduction:
Adduction: .
Rotation:
Circumduction:
Supination/Pronation
radius/ulna.
Opposition

Question 2

Name the tendons of Extrinsic muscles

Answer 2

Long flexor or extensor tendons

Question 3

What is the function of the synovial tendon sheaths

Answer 3

Lubricate tendons at the wrists and fingers for smooth movement

Question 4

Name all the bones of the upper limb

Answer 4

• Pectoral girdle(clavicle,scapula,humerus,radius,ulna,carple bone,metacarpals,phalanges

Question 5

Desribe the clavicle

Answer 5

• S shaped, forming the anterior pectoral girdle
• Articulates with the manubirum medially and the scapulas acromion laterally

Question 6

Desribe the scapula
+ key features

Answer 6

• Flat,triangular bone on the posterior thoracic wall ( 2-7)
• It has medial,lateral and superior borders
  key features:
  -spine
  -suprasipnous fossae
  -Infra spinous fossae
  -subscapular fossae
  -acromion
  -Glenoid cavity wich articulates with the humerus

Question 7

Describe the humerus

Answer 7

• Longbone of the arm
  -The proximal head articulates with the scapula
• The intertubercular groove seperates the greater and lesser tubercles
• The Anatomic Neck speperates the head from the greater and lesser tubercles

Question 8

Explain the Ulna
+its features

Answer 8

• The medial bone of the forearm
  -It articulates with the radius at the radial notch
• Interosseus membranes joints the shafts of the radius and ulna
  Feautres:
• Trochlear Notch
  -Styloid process
• Olecranon
• Coronoid process

Question 9

Describe the radius

Answer 9

• Lateral bone of the forearm
  -Articulates with the humerus and ulna
  interosseus membranes joins theT shaft of the radius and ulna

Question 10

Explain the carpal bones

Answer 10

-consist of 8 bones arranged in 2 curved rows: proximal and distal
1.Proximal: scaphoid,triquetrum,pisiform
Distal:Trapezium,trapezoid,capitate,hamate

Question 11

Explain the metacarpals

Answer 11

• Consist of 5 long bones
  -Proximally their bases articulate with carpals
  -Distally their ehads form knuckles

Question 12

Describe the phalanges

Answer 12

small long bones that form the fingers
- Categorized as proximal,distal and middle

Question 13

What is the function of the spaces between the muscles of the shoulder and scapula

Answer 13

They allow nerve and vessels to pass between the axilla, posterior scapula and the humeral regions

Question 14

Name all the spaces in the muscles and shoulder

Answer 14

• The quadrangular space
  -The scapular notch
• The triangular space
• The triceps Hiatus

Question 15

What is the function of the quadrangular space

Answer 15

It Transmits the posterior circumflex humeral artery and axillary nerve