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NBCE I (General Anatomy) > Anatomical triangles > Flashcards

Anatomical triangles Flashcards

1
Q

What are the boundaries of the sub-occipital triangle

A
  • Rectus capitis posterior major (C2 spinous process to occiput)
  • obliquus capitis superior (C1 transverse process to occiput)
  • obliquus capitis inferior (C2 Spinous process to C1 transverse process)
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2
Q

What is the roof of the sub-occipital triangle

A

deep fascia covered by semispinalis capitis

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3
Q

What makes up the floor of the sub-occipital triangle

A

Posterior arch of C1 and posterior atlanto-occipital membrane

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4
Q

what are the contents of the suboccipital triangle

A

the 3rd part of the vertebral artery, suboccipital nerve (dorsal ramus of C1) and suboccipital veins

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5
Q

ALL the muscles forming the boundaries of the suboccipital triangle are supplied by what nerve

A

dorsal ramus of C1

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6
Q

What are the boundaries of the anterior cervical triangle

A

Anterior midline, inferior ramus of mandible and anterior border of SCM

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7
Q

what makes up the roof of the anterior cervical triangle

A

skin, superficial fascia and investing layer of deep cervical fascia

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8
Q

What are the contents of the anterior cervical triangle

A

carotid, submandibular, and submental and muscular triangles

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9
Q

What are the boundaries of the carotid triangle

A

SCM, posterior belly of digastric and superior belly of omohyoid

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10
Q

what is the roof of the carotid triangle

A

skin, subcutaneous fascia and investing layer of deep cervical fascia

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11
Q

what is the floor of the carotid triangle made up of

A

hyoglossus, middle and inferior constrictor muscles

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12
Q

What are the contents of the Carotid triangle

A

CN XI, XII and the carotid sheath containing common carotid artery, internal carotid artery, internal jugular vein, and CN X. Lying anterior to the carotid sheath are lymph nodes and ansa cervicalis

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13
Q

The submandibular triangle is also known as what

A

digastric triangle

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14
Q

what are the boundaries of the Submandibular triangle

A

posterior and anterior bellies of the digastric and inferior ramus of mandible

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15
Q

what is the roof of the submandibular triangle

A

skin superficial fascia

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16
Q

what makes up the floor of the submandibular triangle

A

mylohyoid, hyoglossus and part of the middle constrictors

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17
Q

What are the contents of the submandibular triangle

A

submandibular glands, nodes, facial vein and artery, hypoglossal and mylohyoid nerve

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18
Q

Submental triangle is also known as what

A

suprahyoid triangle

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19
Q

what are the boundaries of the submental trianlge

A

anterior bellies of both digastric hyoid bone

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20
Q

what is the roof of the submental triangle

A

skin, subcutaneous fascia

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21
Q

what is the floor of the submental triangle

A

mylohyoid muscles

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22
Q

what are the contents of the submental triangle

A

submental lymph nodes and submental veins

23
Q

What are the boundaries of the muscular triangle

A

SCM, superior belly of omohyoid and anterior midline of neck

24
Q

what makes up the roof of the muscular triangle

A

skin and superficial fascia

25
what are the contents of the muscular triangle
sternohyoid, sternothyroid and thyrohyoid muscles, thyroid, trachea and larynx
26
The posterior cervical triangle is subdivided by what
inferior belly of omohyoid into the occipital and supraclavicular triangle
27
What are the boundaries of the posterior cervical triangle
SCM, trapezius and middle third of the clavicle
28
what makes up the roof of the posterior cervical triangle
Skin, superficial fascia, platysma and investing layer of deep cervical fascia
29
What makes up the floor of the posterior cervical triangle
splenius capitis, levator scapulae, scalenus posterior, medius and anterior
30
What are the contents of the posterior cervical triangle
- (6 vessels) Subclavian artery, suprascapular, transverse cervical, occipital arteries, the subclavian and external jugular vein - (7 nerves) great auricular, lesser occipital, supraclavicular, transverse cervical nerves, trunks of the brachial plexus and CN XI - Clinically Oriented anatomy includes also the phrenic nerve
31
What are the boundaries of the triangle of auscultation
Trapezius, latissimus dorsi and the bedial border of the scapular
32
what makes up the roof of the triangle of auscultation
skin and superficial fascia
33
what makes up the floor of the triangle of auscultation
the rhomboid major
34
what are the contents of the triangle of auscultation
there are none
35
what is the lumbar triangle also known as
triangle of Petit
36
what are the boundaries of the lumbar triangle
latissimus dorsi, external oblique and iliac crest
37
what makes up the roof of the lumbar triangle
skin and superficial fascia
38
what is the floor of the lumbar triangle
transverse abdominis
39
what are the contents of the lumbar triangle
there are none
40
The inguinal triangle is also known as
Triangle of Hesselbach
41
what are the boundaries of the inguinal triangle
rectus abdominis, inferior epigastric vessels and inguinal ligamens
42
The inguinal ligament is the infolding of what
The lower end of the aponeurosis of external oblique and extends from the ASIS to the pubic tubercle
43
What is the roof of the inguinal triangle
skin and external oblique aponeurosis
44
what is the floor of the inguinal triangle
transversalis fascia
45
What passes through Hesselbach's triangle
Direct hernias
46
what passes through the deep inguinal ring which is due to a defect in the transversalis fascia
indirect hernias
47
The femoral triangle is also known as
the triangle of scarpa
48
what are the boundaries of the lumbar triangle
the inguinal ligament, medial boarders of sartorius and adductor longus
49
What is the roof of the femoral triangle
skin, superficial fascia and fascia lata
50
what makes up the floor of the temoral triangle
iliopsoas, pectineus and adductor longus
51
what are the contents of the femoral triangle
femoral nerve, femoral artery, femoral vein, and femoral canal
52
The femoral artery, vein and canal lie inside of what
the femoral sheath
53
the femoral sheath is formed from what
the fascia related to the transversalis and iliacus muscles
54
where does the femoral nerve lie in relation to the femoral sheath
outside

NBCE I (General Anatomy) (9 decks)

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