A&P - Practicum 3

cell body (soma)

B

nuclei

groups of neurons in CNS

ganglia

groups of neurons in PNS

cytoplasm (of neuron)

what substance fills cell body?

mitochondria (of neuron)

3

ribosomes

6, may be free or attached to Nissl bodies (rough ER)

Golgi

7

neurotubules

type of neurofilament in neurons

chromatophilic substance

formed by Nissl bodies (rough ER)

Nissl bodies (rough ER)

5

nucleus

2

nucleolus

2

dendrites

5

axolemma

d

axon hillock

green area

initial segment

6

terminal branches (telodendria)

F, name of the branches

axon terminals

F, name of the ends

synaptic vesicles

C

bipolar neuron

green one

multipolar neuron

last one

unipolar neuron

1st one

pseudounipolar neuron

3rd one

astrocyte

green cell

perivascular feet

ends of astrocyte that attach to blood vessel

oligodendrocytes

myelinate axons in CNS

microglial cells

regulate brain development, maintenance of neuronal networks, injury repair in CNS

ependymal cells

control production/flow of CSF + waste clearance in CNS

Schwann cells (neurolemmocytes)

myelinate axons in PNS

outer collar of perinuclear cytoplasm (neurilemma)

myelin sheath

2

myelin sheath gaps (nodes of Ranvier)

3

satellite cells

supply nutrients to surrounding neurons, protective/cushioning

synapse

presynaptic membrane

first membrane

postsynaptic membrane

second membrane

synaptic cleft

space between neurons

endoneurium

fascicles

5

perineurium

2

epineurium

1

internal carotid artery

basilar artery

vertebral artery

cerebral arterial circle (of Willis)

anterior cerebral artery

middle cerebral artery

posterior cerebral artery

anterior communicating artery

posterior communicating artery

superior sagittal sinus vein

inferior sagittal sinus vein

green

transverse sinus vein

sigmoid sinus vein

vertebral vein

green

internal jugular veins

cranial vault (calvaria)

cranial cavity

yellow

anterior cranial fossa

middle cranial fossa

posterior cranial fossa

frontal bone

supraorbital foramen

supraorbital margin

glabella

parietal bone

temporal bone

squamous part of temporal bone

A

petrous part of temporal bone

E

zygomatic process (of temporal bone)

mandibular fossa (of temporal bone)

external acoustic meatus (of temporal bone)

green

jugular foramen (of temporal bone)

carotid canal (of temporal bone)

4

foramen lacerum (of temporal bone)

11

internal acoustic meatus (of temporal bone)

styloid process (of temporal bone)

mastoid process (of temporal bone)

stylomastoid foramen (of temporal bone)

occipital bone

foramen magnum (of occipital bone)

occipital condyles (of occipital bone)

hypoglossal canal (of occipital bone)

superior nuchal line (of occipital bone)

external occipital protuberance (of occipital bone)

sphenoid bone

sella turcica (of sphenoid bone)

hypophyseal fossa (of sphenoid bone)

lesser wings (of sphenoid bone)

green

greater wings (of sphenoid bone)

red

optic canal (of sphenoid bone)

2

superior orbital fissure (of sphenoid bone)

foramen rotundum (of sphenoid bone)

foramen ovale (of sphenoid bone)

foramen spinosum (of sphenoid bone)

ethmoid bone

cribriform plate (of ethmoid bone)

olfactory foramina (of ethmoid bone)

names of holes

crista galli (of ethmoid bone)

falx cerebri

what attaches at the crista galli?