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Flashcards in Anatomy Deck (78)
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1

What is the diencephalon made up of?

thalamus and hypothalamus

2

What are the 3 parts of the brainstem?

midbrain; pons; medulla oblongata

3

What connects the hypothalamus and the pituitary gland?

infundibulum or pituitary stalk

4

What is pituitary fossa lie within?

the sella turcica

5

Where is the pituitary fossa?

a midline structure of the sphenoid bone

6

Which part of the retina do things from the nasal side of the visual side enter?

temporal retina

7

What lies immediately superior to the pituitary gland?

optic chaism

8

What forms the optic chiasm?

right and left optic nerves (CNII)

9

How do the signals from the eyes reach the visual cortex?

travel to the optic chaism, then that splits into right and left optic tracts, synapses at the thalamaus, pass via the optic radition to the visual cortex in the occipital lobe

10

What is the difference between nasal retina and temporal retina transmission?

nasal retina APs cross over at the chiasma but temporal retina APs stay on the same side

11

What is bitemporal hemianopia?

when a patient loses the ability to see structures in the temporal side of hte visual field bilaterally

12

What bone are the superior and middle nasal concha made from?

ethmoid bone

13

What are the paranasal sinuses?

air-filled spaces within the bones surrounding the nasal cavities

14

What type of epithelia line the paranasal sinsues?

muscous secreting respiratory muscosa

15

Which bones have a sinus?

frontal bone; maxilla; ethmoid bone; sphenoid bone

16

What is the function of the paranasal sinsues?

make muscous and drain it into the nasal cavities through ostia (bony drainage hole); reduce the weigth of the skull; add resonance to the voice

17

what lines the entire cranial cavity internally?

dura mater

18

What is the tenorium cerebelli?

a tough sheet of dura mater "tenting" over the cerebellum between the cerebellum and cerebrum within the posterior cranial fossa but with a central gap to permit the brainstem to pass through

19

What is the diaphragm sellae?

a tough sheet of dura mater forming a roof over the pituitary fossa

20

What are the dural venous sinuses?

venous channels within the dura mater that drain most of hte venous blood from the cranial cavity (and brain) into the internal jugular veins

21

Where do the dural venous sinuses drain into the internal jugular veins?

at the jugular foraminae in the floor of the posterior cranial fossa

22

What venous drainage surrounds the pituitary gand?

cavernous and intercavernous sinuses

23

What arteries pass through the cavernous sinuses?

internal carotid arteries

24

What are the 3 parts of the thyroid gland?

2 lateral lobes and an isthmus

25

Where does the isthmus lie?

anterior to the 2nd and 3rd cartilages of the trachea

26

Where are the parathyroid glands located?

posterior surfaces of the thyroid glands lateral lobes

27

What is the pyramidal lobe?

an extra lobe on the thyroid gland which most commonly originates fro mthe left lateral lobe

28

What does the pyramidal lobe most commonly attach to superiorly?

thyroid cartilage

29

Where does the thyroid gland begin its development

as a midline epithelial proliferation at the junction between the anterior and posterior parts of the tongue

30

What is the area where the thyroid gland begin called in adults?

foramen caecum