practical 2 deluxe

Where are the cell bodies of sensory neurons located?

In the dorsal root ganglia and dorsal horn

Where are the axons of sensory neurons located?

In the dorsal root and dorsal column

Where are the axonal terminals of sensory neurons located?

In the dorsal horn

Where are the interneurons located?

Grey matter

Where are the axons of motor neurons located?

In the ventral root

What is found in the central canal?

Cerebrospinal fluid

A

cervical spinal nerves

B

Thoracic spinal nerves

C

lumbar spinal nerves

D

Sacral spinal nerves

E

Cervical enlargement

F

Lumbosacral enlargement

G

Conus medullaris

H

Cauda equina 

1A

Dura Mater

2A

Subarachnoid space

3A

Arachnoid Mater 

4A

pia Mater

5A

Epidural Space

6A

Vertebral Artery

1B

Dorsal root ganglion

2B

Dorsal root

3B

Ventral root

4B

Mixed spinal nerve

5B

Posterior (dorsal) ramus

6B

anterior ventral ramus

1C

anterior (ventral) horn

2C

posterior (dorsal) horn

3C

central canal

4C

dorsal column

5C

lateral column

6C

Ventral column

7C

Ventral median fissure

8C

dorsal median sulcus

9C

pia mater

10C

arachnoid mater 

11C

epidural space

12C

dura mater

?

Cervical plexus

?

Brachial plexus 

?

Lumbar plexus 

?

Sacral plexus 

? and origin

Phrenic, cervical plexus

? and origin

median and brachial plexus

What nerve is this? What plexus does it originate?

Radial nerve, brachial plexus

What nerve is this? What plexus does it originate?

Ulnar nerve, brachial plexus

what nerve and from which plexus?

Femoral and lumbar plexus 

what nerve and from which plexus?

Sciatic and sacral plexus

Posterior gray horns

sensory

Anterior gray horns

motor

Lateral horn

motor

Dorsal root of spinal nerve

sensory

Ventral root of spinal nerve

motor

Mixed spinal nerve

mixed 

Dorsal ramus 

mixed

 Ventral ramus

mixed

Dorsal column

sensory

Central canal

cerebrospinal fluid

1

outer ear

2

middle ear

3

inner ear

2 (far left)

Pinna

4

external acoustic meatus

67

Tympanic membrane

green and bone next to green

Ossicles

28 (snail shell looking thing)

Cochlea

22 and 24

Semicircular canals

pink circle

auditory nerve

green

cerebrum

?

cerebellum

?

Longitudinal fissure

blue

Frontal lobe

green

temporal lobe

Yellow

parietal lobe

pink

Occipital lobe

What are the grooves on the surface of the cerebrum called?

Sucli

What are the ridges on the surface of the cerebrum called?

gyri

What are the ridges and grooves of the brain called as a whole?

Convolutions

groove above 23

lateral sulcus 

groove between 15 & 16

Central sulcus

15

precentral gyrus 

16

postcentral gyrus

76/95 (large structure)

Cerebellum

Teal line

Transverse fissure

50

Mammillary body 

line between 49 and pink buld

infundibulum

floating pink bulb

Pituitary Gland 

yellow behind 49

hypothalamus 

49

Optic chiasma

blue

Optic tract 

what is I

Olfactory bulb 

What is the line going into 1

Olfactory tract

47

Midbrain

52 

Pons

Between 53 and 54

medulla oblongata

34-37

Corpus callosum

What separates the open spaces in the middle of the brain 82

Septum pellucidum

40

Dorsal thalamus

90

Cingulate gyrus

61

Superior colliculus