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Bio 319 (A&P) > Lab Exam 1 - AOIs > Flashcards

Lab Exam 1 - AOIs Flashcards

(70 cards)

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1
Q

Obliques (external and internal)

A

Muscle group - Abdominal wall
Action - Compression of abdomen, flexion, and rotation of trunk
Origin - Ribs (external), iliac crest (internal)
Insertion - Iliac crest (external), ribs (internal);
Both

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2
Q

Transverse abdominis

A

Muscle group - Abdominal wall
Action - Compression of abdomen
Origin - Ribs and iliac crest
Insertion - Linea alba
Both

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3
Q

Rectus abdominus

A

Muscle group - Abdominal wall
Action - Flexion of trunk; compression of abdominal wall
Origin - Public crest
Insertion - Xiphoid process and ribs (5-7)
Both

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4
Q

Intercostals (external and internal)

A

Muscle group - Breathing muscles
Action - Elevation and depression of ribs
Origin - Superior border of ribs (external); inferior border of ribs (internal)
Insertion - Inferior border of ribs (external); superior border of ribs (internal)
Both

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5
Q

Diaphragm

A

Muscle group - Breathing muscles
Action - Opens thoracic cavity for lungs during inhalation
Origin - Ribs (5-10) and lumbar vertebrae
Insertion - Central tendon
Both

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6
Q

Frontalis

A

Muscle group - Muscles of the scalp
Action - Raises eyebrows
Origin - Epicranial aponeurosis
Insertion - Skin of eyebrows and root of nose
Human

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7
Q

Occipitalis

A

Muscle group - Muscles of the scalp
Action - Pulls scalp posteriorly
Origin - Occipital bone
Insertion - Epicranial aponeurosis
Human

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8
Q

Temporalis

A

Muscle group - Mastication
Action - Closes jaw; retracts mandible
Origin - Temporal fossa
Insertion - Coronoid process (mandible)
Human

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9
Q

Masseter

A

Muscle group - Mastication
Action - Closes jaw
Origin - Zygomatic arch
Insertion - Angle and ramus (mandible)
Both

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10
Q

Zygomaticus

A

Muscle group - Facial expression
Action - Elevates corners of mouth
Origin - Zygomatic bone
Insertion - Corner of mouth
Human

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11
Q

Buccinator

A

Muscle group - Facial expression
Action - Compression of cheek
Origin - Molar region (maxilla and mandible)
Insertion - Orbicularis oris
Human

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12
Q

Platysma

A

Muscle group - Facial expression
Action - Tenses skin of neck; depression of lower lip
Origin - Fascia of chest
Insertion - Mandible and corner of mouth
Human

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13
Q

Orbicular oculi

A

Muscle group - Facial expression
Action - Closes eyes
Origin - Frontal bone and maxilla
Insertion - Eyelids
Human

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14
Q

Orbicular oris

A

Muscle group - Facial expression
Action - Closes and protrudes lips
Origin - Maxilla and mandible
Insertion - Angles of mouth
Human

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15
Q

Levator labii superioris

A

Muscle group - Facial expression
Action - Elevation of upper lip
Origin - Zygomatic bone and infraorbital margin (maxilla)
Insertion - Upper lip
Human

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16
Q

Depressor labii inferioris

A

Muscle group - Facial expression
Action - Depression of lower lip
Origin - Body of mandible
Insertion - Lower lip
Human

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17
Q

Sternocleidomastoid

A

Muscle group - Anterolateral neck
Action - Flexion and rotation of neck
Origin - Manubrium and clavicle
Insertion - Mastoid process (temporal bone)
Both

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18
Q

Scalenes

A

Muscle group - Anterolateral neck
Action - Elevation of ribs 1 & 2; rotation of neck
Origin - Transverse processes of cervical vertebrae (C3-C7)
Insertion - Ribs 1-2
Both

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19
Q

Serratus anterior

A

Muscle group - Anterior thorax
Action - Abduction and rotation of scapula
Origin - True ribs
Insertion - Medial border (scapula)
Both

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20
Q

Rhomboids

A

Muscle group - Anterior thorax
Action - Adduction and elevation of scapula
Origin - Spinous processes of vertebrae (C7-T5)
Insertion - Medial border (scapula)
Both

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21
Q

Splenius

A

Muscle group - Intrinsic muscles of back
Action - Rotation of head; extension of neck
Origin - Spinous processes of vertebrae (C7-T6)
Insertion - Temporal and occipital bone
Both

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22
Q

Diagastric

A

Muscle group - Anterior neck (Suprahyoid)
Action - Elevation of hyoid; opens mouth
Origin - Lower margin (mandible); mastoid process (temporal bone)
Insertion - Hyoid bone
Both

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23
Q

Mylohyoid

A

Muscle group - Anterior neck (Suprahyoid)
Action - Elevation of hyoid and floor of mouth
Origin - Medial surface (mandible)
Insertion - Hyoid bone
Both

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24
Q

Geniohyoid

A

Muscle group - Anterior neck (Suprahyoid)
Action - Elevation and protraction of hyoid bone
Origin - Mental tubercle
Insertion - Hyoid bone
Both

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25
Sternohyoid
Muscle group - Anterior neck (Infrahyoid) Action - Depression of hyoid and larynx Origin - Manubrium (sternum) Insertion - Hyoid bone Both
26
Sternothyroid
Muscle group - Anterior neck (Infrahyoid) Action - Depression of hyoid and larynx Origin - Manubrium (sternum) Insertion - Thyroid cartilage Both
27
Thyrohyoid
Muscle group - Anterior neck (Infrahyoid) Action - Depression of hyoid; elevation of larynx Origin - Thyroid cartilage Insertion - Hyoid bone Both
28
Abdominal wall
External obliques Internal obliques Transverse abdominis Rectus abdominis Common action is compression of abdomen
29
Breathing muscles
External and internal intercostals - muscle fibers have different orientation Diaphragm
30
Diaphragm
Large, dome-shaped muscle Main muscle used for breathing Contraction - inhalation and diaphragm moves downward (flattens out to make space for abdominal cavity) Relaxation - exhalation and diaphragm relaxes (returns to dome-shape)
31
Muscles of head
Muscles of scalp - frontalis, occipitalis Mastication - temporalis, masseter
32
Facial expression
Zygomaticus Buccinator Platysma Orbicular oris Orbicular oculi Levator labii superioris Depressor labii inferioris
33
Anterolateral neck
Sternocleidomastoid Scalenes Common motion is rotation of neck
34
Anterior thorax
Anterior thorax - serratus anterior, rhomboids; both act on scapula Intrinsic muscles of back - splenius; rotation of head and extension of neck
35
Anterior neck
Suprahyoid - digastric, mylohyoid, geniohyoid; common action is elevation of hyoid Infrahyoid - sternohyoid, sternohyoid, thyrohyoid; common action is depression of hyoid
36
Pectoralis major
Muscle group - Muscles crossing shoulder joint Action - Adducts, flexes, and medially rotates arm Origin - Clavicle, sternum, and ribs Insertion - Humerus (intertubercular sulcus) Both
37
Latissimus dorsi
Muscle group - Muscles crossing shoulder joint Action - Adducts, extends and medially rotates arm Origin - Scapula, vertebral column, and iliac crest Insertion - Humerus (intertubercular sulcus) Both
38
Deltoid
Muscle group - Muscles crossing shoulder joint Action - Abducts, flexes, and rotates arm medially and laterally Origin - Clavicle and scapula Insertion - Deltoid tuberosity of humerus Both
39
Trapezius
Muscle group - Posterior thorax Action - Adducts and rotates scapula; elevation and depression of scapula Origin - Superior nuchal line of occipital bone and vertebral column Insertion - Lateral clavicle and scapular spine and acromion Both
40
Levator scapulae
Muscle group - Posterior thorax Action - Elevation of scapula, lateral neck flexion Origin - Transverse processes of cervical vertebrae (C1-C4) Insertion - Medial border (scapula) Both
41
Pectoralis minor
Muscle group - Anterior thorax Action - Stabilizes, abducts, and rotates scapula Origin - Ribs 3-5 Insertion - Scapula (coracoid process) Both
42
Subscapularis
Muscle group - Shoulder joint Rotator cuff muscle Action - Medial rotation of arm, stabilizes humerus head in glenoid cavity Origin - Subscapular fossa of scapula Insertion - Lesser tubercle of humerus Both
43
Infraspinatus
Muscle group - Shoulder joint Rotator cuff muscle Action - Lateral rotation of arm, stabilizes humerus head in glenoid cavity Origin - Infraspinous fossa of scapula Insertion - Greater tubercle of humerus Both
44
Supraspinatus
Muscle group - Shoulder joint Rotator cuff muscle Action - Abduction of arm, stabilizes humerus head in glenoid cavity Origin - Supraspinous fossa of scapula Insertion - Greater tubercle of humerus Both
45
Teres minor
Muscle group - Shoulder joint Rotator cuff muscle Action - Lateral rotation and adduction of arm, stabilizes humerus head in glenoid cavity Origin - Lateral border of scapula Insertion - Greater tubercle of humerus Both
46
Teres major
Muscle group - Shoulder joint Action - Medial rotation, adduction, and extension of arm Origin - Inferior angle and lateral border of scapula Insertion - Intertubercular sulcus of humerus Both
47
Coracobrachialis
Muscle group - Shoulder joint Action - Flexion and adduction of arm Origin - Coracoid process of scapula Insertion - Mid-shaft of humerus Both
48
Biceps brachii (long and short head)
Muscle group - Anterior arm muscles Action - Supination and flexion of forearm Origin - Supraglenoid tubercle and coracoid process of scapula Insertion - Radial tuberosity Both
49
Brachialis
Muscle group - Anterior arm muscles Action - Flexion of forearm Origin - Anterior distal shaft of humerus Insertion - Ulnar tuberosity and coracoid process of ulna Both
50
Triceps brachii (long, lateral, and medial head)
Muscle group - Posterior arm Action - Extension of forearm; stabilizes shoulder joint Origin - Infraglenoid tubercle (scapula) and proximal posterior shaft of humerus Insertion - Olecranon process (ulna) Both
51
Brachioradialis
Muscle group - Anterior forearm Action - Flexion of forearm; pronation of forearm (when supinated); supination of forearm (when pronated) Origin - Distal shaft of humerus Insertion - Styloid process of radius Both
52
Flexor carpi radialis
Muscle group - Anterior superficial forearm Action - Wrist flexion and hand abduction Origin - Medial epicondyle (humerus) Insertion - Metacarpals II and III Both
53
Palmaris longus
Muscle group - Anterior superficial forearm Action - Wrist flexion (weak) Origin - Medial epicondyle (humerus) Insertion - Palmar aponeurosis (sheet-like tendon) Both
54
Flexor carpi ulnaris
Muscle group - Anterior superficial forearm Action - Wrist flexion and hand adduction Medial epicondyle of humerus and olecranon process and posterior border (ulna) Insertion - Pisiform and hamate (carpal bones) Both
55
Pronator teres
Muscle group - Anterior superficial forearm Action - Forearm pronation Origin - Medial epicondyle (humerus) and coronoid process of ulna Insertion - Lateral mid-shaft of radius Both
56
Flexor pollicis longus
Muscle group - Anterior deep forearm Action - Flexion of thumb Origin - Mid-shaft of radius; coronoid process (ulna) Insertion - Distal phalanx of I (thumb) Human
57
Flexor digitorum profundus
Muscle group - Anterior deep forearm Action - Flexion of wrist and fingers (2-5) Origin - Proximal shaft of ulna Insertion - Distal phalanges II-V Both
58
Extensor carpi radialis longus
Muscle group - Posterior superficial forearm Action - Extension of wrist and abduction of hand Origin - Supracondylar ridge (humerus) Insertion - Metacarpal II Both
59
Extensor carpi radialis brevis
Muscle group - Posterior superficial forearm Action - Extension of wrist and abduction of hand Origin - Lateral epicondyle (humerus) Insertion - Metacarpal III Both
60
Extensor digitorum
Muscle group - Posterior superficial forearm Action - Extension of wrist and fingers (2-5) Origin - Lateral epicondyle (humerus) Insertion - Phalanges II-V Both
61
Extensor carpi ulnaris
Muscle group - Posterior superficial forearm Action - Extension of wrist; adduction of wrist Origin - Lateral epicondyle (humerus) and ulna Insertion - Metacarpal V Both
62
Abductor pollicis longus
Muscle group - Posterior deep forearm Action - Abduction and extension of thumb Origin - Radius and ulna (both proximal posterior); Interosseous membrane Insertion - Metacarpal I (base) Both
63
Extensor pollicis longus
Muscle group - Posterior deep forearm Action - Extension of thumb Origin - Ulna (posterior mid-shaft); Interosseous membrane Insertion - Distal phalanx of thumb Both
64
Supinator
Muscle group - Posterior deep forearm Action - Supination of forearm Origin - Ulna (posterior proximal shaft); lateral epicondyle of humerus Insertion - Radius (lateral proximal shaft) Both
65
Thorax
Posterior: Trapezius (superficial); levator scapulae (deep) Anterior: Pectoralis minor (deep)
66
Muscles crossing shoulder joint
Pectoralis major (superficial) Latissimus dorsi (superficial) Deltoid (superficial)
67
Shoulder joint
Subscapularis (anterior scapula) Infraspinatus Supraspinatus Teres minor Teres major Corocobrachialis
68
Arm
Anterior: Biceps brachii (short and long head); brachialis (deep to biceps brachii) Posterior: Triceps brachii (long, lateral, and medial head (deep))
69
Anterior forearm
Anterior superficial: Brachioradialis; flexor carpi radialis; palmaris longus; flexor carpi ulnaris; pronator teres Anterior deep: Flexor pollicis longus; flexor digitorum profundus
70
Posterior forearm
Posterior superficial: Extensor carpi radialis longus; extensor carpi radialis brevis; extensor digitorum; extensor carpi ulnaris Posterior deep: Abductor pollicis longus; extensor pollicis longus; supinator

Bio 319 (A&P) (10 decks)

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