Muscle

Question 1

Which of the following triangles is bounded by the sternocleidomastoid, the posterior belly of diagastric and superior belly of omohyoid muscle?

Answer 1

Carotid triangle

Question 2

Contents of the submental triangle

Answer 2

Sumbental lymph nodes and floor of the mouth

Question 3

What muscles assist in opening the pharyngeal orifice of the auditory tube during swallowing?

Answer 3

Salpingopharyngeal

Question 4

Origin of stylopharyngeus muscle

Answer 4

Styloid process of temporal bone

Question 5

Pharynx

External circular layer includes:

Answer 5

Superior
Middle
Inferior pharyngeal contrictors

Question 6

Internal longitudinal layer:

Answer 6

Palatopharyngeus
Stylopharyngeus
Salpingopharyngeus

Question 7

All longitudinal muscles of the pharynx are innervated by______ except _____.

Answer 7

Vagus nerve via pharyngeal plexus

Stylopharyngeus muscle which is innervated by glossopharyngeal nerve (CN IX)

Question 8

Which of the following contains thick myosin filaments only?

Answer 8

H zone

Question 9

Functional unit of the skeletal muscle

Answer 9

Sarcomere

Question 10

The _____ is the most superficially located and the most strongest muscle of mastication.

Answer 10

Masseter

Question 11

All muscles of mastication are innervated by the

Answer 11

Mandible division of trigeminal nerve (CN V3)

Question 12

The anterior and superior pillars of the fauces enclose which area of lymphoid tissue?

Answer 12

Palatine tonsils

Question 13

The anterior and posterior pillars of the fauces enclose which area of lymphoid tissue?

Answer 13

Palatine tonsils

Question 14

Neurovascular bundle of the soft palate

Answer 14

Lesser palatine vein, artery and nerve

Question 15

A narrow passage from the mouth to the pharynx, situated between the soft palate and the base of the tongue

Answer 15

Fauces

Question 16

Results from failure of complete fusion of the palatine shelves

Answer 16

Bifid uvula

Question 17

These following muscles are innervated by the same nerve that innervated the muscles of mastication

Answer 17

Mylohyoid
Tensor tympani
Tensor veli palatini
Ant. Belly of the digastric

Question 18

All of the muscles of mastication are innervated by the

Answer 18

Mandibular division of trigeminal nerve

Question 19

All muscles of mastication receive blood from the

Answer 19

Pterygoid portion of the maxillary artery

Question 20

All muscles of mastication are derived from

Answer 20

1st pharyngeal arch

Question 21

Muscles of the tongue are innervated by what nerve?

Answer 21

Hyoglossus
Styloglossus
Genioglossus

❌ palatoglossus

Question 22

Palatoglossus muscle is innervated by

Answer 22

Hypoglossal nerve
Pharyngeal plexus via vagus nerve

Question 23

Provides sensory input to the anterior 2/3 of the tongue

Answer 23

Trigeminal nerve

Question 24

Provides/ supplies the posterior 1/3 of the tongue

Answer 24

Glossopharyngeal nerve

Question 25

Muscles of the tongue are derived from

Answer 25

Myoblasts that migrate from myotomes of occipital somites

Question 26

Connective tissue, lymphatics and blood vessels of the tongue are derived from

Answer 26

Pharyngeal arch mesenchyme

Question 27

These muscles are responsible for elevating the mandible

Answer 27

Masseter Medial pterygoid Temporalis ❌ mylohyoid

Question 28

Five paired skeletal muscles of the soft palate

Answer 28

Palatoglossus Palatopharyngeus Levator veli palatini Tensor veli palatini Uvular

Question 29

All paired skeletal muscles of the soft palate are innervated by pharyngeal plexus except

Answer 29

Tensor veli palatini - a branch of nerve to the medial pterygoid

Question 30

Diaphragm is innervated by

Answer 30

Phrenic nerve - travels thru the thorax between the pericardium and pleura

Question 31

What costal muscle can typically cross more than one intercostal space?

Answer 31

Subcostal

Question 32

These muscles raise the ribs during inspiration

Answer 32

External intercostal muscles - runs PI Subcostal muscles

Question 33

These muscles depress the ribs during expiration (run posteriorly and inferiorly)

Answer 33

Internal intercostal muscles

Question 34

These muscles pull through ribs downward during expiration

Answer 34

Transverse thoracic muscles

Question 35

Name the molecule that lies along the surface of F-actin and physically covers myosin binding sites during the resting state

Answer 35

Tropomyosin

Question 36

The right and left rectus abdominis muscles are entirely independent, being separated by a connective structure called the:

Answer 36

Linea alba

Question 37

Posterior abdominal muscles include:

Answer 37

Psoas major and minor (inn. by lumbar plex) Quadratus lumborum (lumbar plex) Iliacus (femoral nerve)

Question 38

The connective tissue layer surrounding each individual muscle fiber is called

Answer 38

Endomysium

Question 39

Elongated and spindle shaped with single nucleus; they are responsible for involuntary movements of internal organs (e.g peristalsis )

Answer 39

Smooth muscle

Question 40

Attaches to the skeleton and is responsible for voluntary body movement. Consists of many elongated, cylindrical cells which are multinucleated.

Answer 40

Skeletal muscle

Question 41

Damage to this nerve results in hoarseness and difficulty breathing

Answer 41

Recurrent laryngeal nerve (located inferior to inferior of pharyngeal constrictor)

Question 42

Supplies all intrinsic muscles except the cricothyroid

Answer 42

Recurrent pharyngeal nerve

Question 43

Cricothyroid muscle is supplied by

Answer 43

External branch of superior laryngeal nerve

Question 44

Plays an important role in cough reflex, which keeps the inferior of the larynx free of the foreign material

Answer 44

Internal laryngeal nerve

Question 45

Contents of the axilla

Answer 45

Axilliary lymph nodes Axillary artery Axillary vein Axillary sheath Cords of brachial plexus

Question 46

These infrahyoid muscles are innervated by the ansa cervicalis

Answer 46

Sternohyoid Sternothyroid Omohyoid

Question 47

Thyrohyoid is innervated by

Answer 47

C1 via hypoglossal nerve

Question 48

Suprahyoid muscles

Answer 48

Digastric (posterior and anterior belly) Geniohyoid Mylohyoid Stylohyoid

Question 49

Major muscle for mouth opening

Answer 49

Anterior belly of the digastric

Question 50

Infrahyoid muscles and their general function

Answer 50

Sternohyoid Sternothyroid Thyrothyroid Omohyoid DEPRESS HYOID

Question 51

Most commonly injured in a mid-humeral shaft fracture

Answer 51

Radial nerve

Question 52

Papillae ⚫️Most numerous arranged in v shaped rows ⚫️ absence of taste buds ⚫️ increased keratinization

Answer 52

Filiform

Question 53

Papillae ⚫️mushroom shaped projections found on the top of the tongue

Answer 53

Fungiform

Question 54

Papillae ⚫️ largest but fewest ⚫️arranged in v shaped rows at the back of the tongue ⚫️innervation?

Answer 54

Circumvallate (vallate) Glossopharyngeal nerve (IX)

Question 55

Tongue papillae associated with ducts of Von Ebner’s glands

Answer 55

Circumvallate

Question 56

Papillae ⚫️ found on lateral margins as 3-4 vertical folds ⚫️ innervated by facial and glossopharyngeal nerves

Answer 56

Foliate

Question 57

Plummer Vinson syndrome triad

Answer 57

Dysphagia Esophageal webs Iron deficiency anemia

Question 58

The major regulatory proteins in muscle tissue are (2)

Answer 58

Troponin Tropomyosin

Question 59

It is responsible for the skeletal muscle regeneration

Answer 59

Satellite cell

Question 60

What muscle elevates and abducts the eyeball?

Answer 60

Inferior oblique