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Anatomy 3402 - 2nd Half > Random facts > Flashcards

Flashcards in Random facts Deck (80):
1

# of ankle joints on medial side

4
ant. and post. tibiotalar
tibionavicular
tibiocalcaneal

2

medial ligament that doesnt cross ankle joint

planter calcaneonavicular

3

most commonly sprained ankle ligament
- how

anterior talofibular
- inversion and planter flexion

4

why lateral ankle sprain causes bruising on both sides

inversion and planter flexion crushes medial ligaments and blood supply

5

ligaments that exist on all metatarsophalangeal and interphalangeal joints

colleateral ligaments

6

ligaments that cause webbing of toes

deep transverse metatarsal ligaments

7

ligament/tendon vs fascia

fascia
- disorganized tissue
- strong in multiple directions

8

Circular like ligaments that contain long muscles of toes

plantar ligaments
- keep tendons in place
- flexor pully system

9

arches of the foot created by

connective tissue on base of the foot

10

sciatic nerve origin

L4-S3
- tibial and common fibular parts

11

saphenous nerve origin

femoral nerve (L2-4)

12

saphenous innervation

skin on medial side of foot and leg

13

anterior leg innervation

deep fibular nerve

14

"fibularis" muscles formally called

peroneal muscles (longus/brevis)

15

tendons which wrap around lateral malleolus

fibularis brevis and longus

- brevis most anterior

16

lateral leg muscles innervation

superficial fibular nerve

17

leg muscles that cross knee joint

poplitius
plantaris
gastrocnemius

18

muscles that insert on achillies

gastrocnemius
soleus
plantaris

19

posterior leg muscle innervation

tibial nerve

20

leg muscle with no known action

plantaris
- very small with long tendon

21

structures around medial malleolus
- anterior to posterior

tibialis posterior
flexor digitorum longus
posterior tibial artery
tibial nerve
flexor hallucis longus

22

muscles on top of foot
- innervation

extensor digitorum brevis
- deep fibular nerve

dorsal interossei
- lateral planter nerve (branch of tibial)
- 1 and 2 also deep fibular nerve

23

fascia on bottom of the foot

- plantar aponeurosis (middle)
- lateral and medial plantar fascia

24

supports the arch on the base of foot

plantar aponeurosis

25

innervated by medial plantar nerve

flexor digitorum brevis
flexor hallicus brevis
abductor hallicus
1st lumbrical

26

innervated by lateral plantar nerve

abductor digiti minimi
quadratus plantae
2nd to 4th lumbricals
flexor digiti minimi
adductor hallicus
plantar interossei

27

major veins in leg and foot

great saphenous vein
small saphenous vein

- connected by dorsal venous arch

28

sciatic nerve path

leaves pelvic cavity through greater sciatic foramen
inferior to piriformis
travels down posterior thigh
bifurcates mid way before popliteal fossa

29

# of bones in skull

22

- 44 at birth, then fuse

30

soft spot on babies
- how many
- time it takes to disappear

frontenelles
- 6 major
- back 2 months
- largest on anterior side 18months

31

part of skull that articulates with atlas

occipital condyles

32

main reason for frontenelles (soft spots)

bones move to fit through birth canal

33

structure of cribiform plate

many small openings for small nerves

34

2 processes of mandible
- which is part of tmj

coronoid process (ant.)

condylar process (tmj)

35

tmj

temporomandibular joint

36

only bone in skull that moves

mandible

37

part of brain thats also considered the spinal chord

medulla omblungatta

38

passes through foramen magnum

spinal cord
vertebral arteries

39

bone with no articulations with other bones

hyoid

40

greater and lesser horns of hyoid attachment

greater - larynx
lesser - stylohyoid ligament

41

region that links larynx, trachea and esophagus

pharynx
- behind nasal and oral cavaties

42

3 major catilages of larynx

epiglottis
thyroid cartilage
cricoid cartilage

43

2 main functions of larynx cartilages

close lower respiratory tract
sound production (vocal cord - vocal folds)

44

how many minor cartilages of larynx

6
3 per side

45

larynx vertebral location

C3 - C6

46

trachea vertebral location

C6 - T5

47

muscles that close epilgotis

suprahyoid muscle
- pulls laryxn and hyoid up and back

48

actions involved in swallowing

raise and pull back laryxn
tongue contracts and pushes back

49

adams apple is what structure

thyroid cartilage

50

adams apple difference male and female

males
- 120 degrees
- larger
- deepens voice

female
- 90degree

51

why are larynx ligaments unique

attach cartilage to cartilage instead of bone to bone

52

3 areas of esophogeal contriction

1. esophageal opening
2. where aorta and left main bronchus cross
3. where it passes through diaphragm

53

seperating anterior and posterior triangle

sternocleidomastoid

54

muscle floor of post triangle

levator scapluae
splenius capitus
scalene muscles

55

brachial plexus travels between what muscles
- what else

anterior and middle scalene
- floor of posterior triangle

also:
dorsal scapular, suprascapular and long thoracic nerves
subclavian artery (deep to ant. sclane)
subclavian vein (sup. to ant. scalene)

56

spindle density relative to body (1984 study)

higher spindle density superior part of body
- head and neck

declines inferiorly

57

ipsilateral vs contralateral rotation

ispi = rotate towards same side

contra = opposite side

58

cervicogenic headache muscles involved

rectus cappitus
oblique capitus
- all innervated by C1 and C2 branches

59

innervation of all pharyngeal muscles?
- 1 acception

vagus nerve

stylopharygeus
- glossopharyngeal nerve

60

# of internal muscles of larynx
- role
- innervation

7 internal muscles
- vagus nerve
- tension to vocal cords, control pitch and tone of voice

61

myodural bridge

connective tissue between capittus muscles and dura mater of spinal cord

- only muscle attachment to spinal cord
- stabilizes cord to prevent folding during neck movement

62

connection between left and right brain

corpus collusum

63

neuron percentage in cerebellum

80%

64

approximate # of total neuron

80-100billion

65

effects of alzheimers

brain degeneration
- mostly in gyri and sulci

66

cerebellum mostly made of

grey matter (neurons)

67

purpose of circle of willis

protective mechanism
- blockage will cause limited damage

68

where to check pulse in neck

int. and ext. carotid artery

- not vein

69

Prolonged post concussion syndrome caused by? (ex. sidney crosby)

impinged blood supply of vertebral arteries to brain
- soft tissue neck injury
- herneated disk C1-C6

70

where is CSF made

ventricles (4)
- 2 lateral
- 3rd and 4th ventrical

71

physical features of scientist with autism

larger ventricles
- increased size limited neurons on left side of brain
- thought to cause lack of social skills

* does not explain improved abilities

72

5 nasal cavity cartilages

1 septal
2 alar
2 lateral

73

innervation of intrinsic and extrinsic tongue muscles
- exception

hypoglossal nerve

4th extrinsic
- vagus nerve

74

fibril cartilage vs articular

stronger
padding
reduced wear and tear
not as good for sliding

75

Sinuses purpose and function
- innervation

air filled cavities
- lined with mucosa (secrete mucus)
- innervated by branches of trigeminal nerves

76

why are lips red

thin skin covering capillary beds

77

only bone in skull that moves

mandible

78

# of muscles for fascial expression
- innervation

approximately 20
- all by fascial nerve

79

eye twitch cause

physical response to stress
- firing of alpha motor neuron

80

gives eye its shape

vitreous chamber (anterior and posterior)
- viscous fluid