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Functional Human Anatomy > Lecture 5 - Shoulder > Flashcards

Lecture 5 - Shoulder Flashcards

1
Q

Axial Skeleton refers to what regions?

A

Skull, Vertebral Column, Thoracic cage

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2
Q

Appendicular Skeleton refers to what regions?

A

Pectoral girdle, upper limb, pelvic girdle, lower limb

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3
Q

Each shoulder (pectoral) girdle consists of a _______, and a _______.

A

Scapula (shoulder blade), Clavicle (collar bone).

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4
Q

The humerus is not part of the shoulder girdle (T/F)

A

True

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5
Q

What are the three joints that attach to the clavicle

A

acromio-clavicular joint,
sterno-clavicular joint,
coracoclavicular joint

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6
Q

the coracoclavicular joint is a _________ (type) joint, whereas the acromioclavicular joint is a _________ (type).

A

syndesmosis, synovial

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7
Q

what are the 6 movements of the scapula

A
  1. Elevation
  2. Depression
  3. Protraction
  4. Retraction
  5. Lateral Rotation
  6. Medial Rotation
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8
Q

the clavicle moves via these two joints, and moves in ___ planes of motion

A

Acromioclavicular, Sternoclavicular, 3 planes (anterior-posterior, superior-inferior, rotation)

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9
Q

this muscle group elevates, retracts and depresses the scapula

A

Trapezius

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10
Q

this muscle group solely retracts the scapula

A

Rhomboids (major and minor)

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11
Q

this muscle group elevates the scapula

A

Levator scapulae

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12
Q

this muscle group protracts the scapula

A

serratus anterior

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13
Q

this muscle group protracts and stabilizes the scapula

A

pectoralis minor

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14
Q

Trapezius Origin and Insertion? Nerve?

A

Origin: External occipital protuberance, nuchal ligament, spinous processes
Insertion: spinous processes of C7-T12 vertebrae
Insertion: Entire length of scapula, acromion, and lateral third of clavicle
Spinal accessory nerve (Cranial nerve XI)

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15
Q

Rhomboid Major origin and insertion? Nerve?

A

Origin: spines of T2-T5 vertebrae (R. Major)
Insertion: medial border of the scapula below the spine
c5- dorsal scapular nerve

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16
Q

Rhomboid minor origin and insertion? Nerve?

A

Origin: Spines of C7 and T1 vertebrae
Insertion: root of the spine of scapula
c5- dorsal scapular nerve

17
Q

Levator Scapulae origin and insertion? Nerve?

A

Origin: Transverse processes of C1-C4 Vertebrae
Insertion: Superior angle of Scapula
Dorsal Scapular nerve (C5)

18
Q

Serratus Anterior origin and insertion?

A

Origin: Anterior aspects of ribs 1-9
Insertion: Anterior surface (costal surface) of the medial border of scapula
Long Thoracic nerve

19
Q

Pectoralis Minor origin and insertion?

A

Origin: Ribs 3-5
Insertion: Coracoid process of the scapula
Medial Pectoral nerve

20
Q

As well as protracting and stabilizing scapula, the pectoralis minor assists in:

A

Raising ribs in forced inspiration

21
Q

What are the articulating bones of the shoulder (glenohumeral) joint:

A
  1. Head of Humerus

2. Glenoid fossa of scapula

22
Q

This is a fibrocartilaginous rim attached to the margin of the glenoid fossa, which deepens the socket.

A

Glenoid Labrum. Like the toilet seat on a a toilet bowl

23
Q

What two muscles attach the upper limb to the axial skeleton?

A

Pectoralis major and latissimus dorsi

24
Q

What muscle attach the upper limb to the shoulder girdle?

A

Deltoid, rotator cuff muscles, teres major

25
Q

Pectoralis major origin and insertion? Movement? Nerves?

A

Origin: Clavicle, Sternum, costal cartilages of ribs 1-6
Insertion: lateral lip of intertubercular groove of humerus
Adducts, flexes and medially rotates arm. Can also extend arm when arm is flexed
Medial and lateral pectoral nerves

26
Q

Latissimus dorsi origin and insertion? Movement? Innervation?

A

Origin: spinous processes from T8-Sacrum, iliac crest, lower 3-4 ribs, inferior angle of scapula.
Insertion: bicipital groove off humerus.
extends, adducts and medially rotates arm. Keeps inferior angle of scapula against chest wall.
Thoracodorsal Nerve

27
Q

Deltoid origin and insertion?

A

Origin: lateral third of clavicle, acromion, and spine of scapula
Insertion: deltoid tuberosity of the humerus
abduction, flexion, extension, medial rotation, lateral rotation
Axillary nerve

28
Q

Name the four rotator cuff muscles:

A

SITS

  1. Supraspinatus
  2. Infraspinatus
  3. Teres minor
  4. Subscapularis
29
Q

Supraspinatus function? Nerve?

A

initiates abduction of the arm (first 15 degrees!). Nerve: Subscapular C5, C6

30
Q

Infraspinatus function? nerve?

A

lateral rotation of the arm. Nerve: Suprascapular nerve.

31
Q

Teres minor Function? nerve?

A

lateral rotation of arm. Nerve: Axillary nerve (C5, C6)

32
Q

Subscapularis function? nerve?

A

main medial rotator of the arm. Nerve: upper and lower subscapular nerves (C5, C6)

33
Q

Teres major origin and insertion? Function? Nerve?

A

Origin: inerior angle of scapula (posterior surface)
Insertion: medial lip of intertubercal groove.
Adducts and medially rotates arm.
Lower subscapular nerve

Functional Human Anatomy (1 decks)

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