Showing posts with label Human Body. Show all posts
Showing posts with label Human Body. Show all posts

Tuesday, December 13, 2016

Autonomic nervous system


Remember we learned that the Nervous System is split up into two parts, the Central Nervous System (CNS) and the Peripheral Nervous System (PNS).
And that part of the Peripheral Nervous System is the Somatic Nervous System.

Another part of the Peripheral Nervous System is the Autonomic Nervous System.

This part of your nervous system controls your internal organs, like your heart, stomach or liver.


(from: wikipedia - autonomic nervous system)


Kid Facts - Blast from the past: Right Ventricle

Tuesday, December 6, 2016

Brachial Plexus


We just learned about the Coccygeal Plexus.

Another part of the nervous system is the Brachial Plexus.

These are the nerves coming from the lower cervical nerves (C5, C6, C7, C8), and the first thoracic nerve (T1).

It controls feeling and movement in the chest, shoulder, arm and hand.


(from: wikipedia - brachial plexus)


Kid Facts - Blast from the past: Right Atrium

Tuesday, November 29, 2016

Coccygeal plexus


We just learned about the Sacral Plexus.

The next nerve at the bottom of your spinal column is the Coccygeal Plexus.

This nerve helps tell your body when it is time to go to the bathroom.


(from: wikipedia - coccygeal plexus)


Kid Facts - Blast from the past: Jugulary Vein

Tuesday, November 22, 2016

Sacral Plexus


We just learned about the Lumbar Plexus.

Further down the spinal cord is the Sacral Plexus.

These nerves help control the back thigh, lower leg, foot and pelvis.


(from: wikipedia - sacral plexus)


Kid Facts - Blast from the past: Digital Veins

Tuesday, November 15, 2016

Lumbar Plexus


We just learned about the Subcostal Nerve.

Another group of nerves is called the Lumbar Plexus.

These are connected to your spinal cord in your lower back, and they help control and get messages from your stomach, back, thighs and upper legs.

(from: wikipedia - lumbar plexus)


Kid Facts - Blast from the past: Superficial Palmar Venous Arch

Tuesday, November 8, 2016

Subcostal Nerve


We just learned about the Intercostal Nerves which comes from the Thoracic nerves T1-T11.

The last of the Thoracic nerves T12 is tied to the Subcostal Nerve.

This nerve helps control your stomach muscles, and gives feeling to the skin on the sides of your body.


(from: wikipedia - subcostal nerve)


Kid Facts - Blast from the past: Dorsal Venous Network of the Hand

Tuesday, November 1, 2016

Intercostal Nerves


We just learned about the Cervical Plexus.

We know that there are 12 thoracic nerves in the spinal cord, T1 - T12.
The first 11 of those, T1 - T11 are called the Intercostal Nerves.

These nerves control your arms, your muscles around your chest and stomach, and the feeling in your skin.


(from: wikipedia - intercostal nerves)


Kid Facts - Blast from the past: Radial and Ulnar Veins

Tuesday, October 25, 2016

Cervical Plexus


We just learned about the Somatic Nervous System.

We know about the 8 cervical nerves in the spinal cord at the neck.

The first 4 of those, C1 - C4 have nerves that come out to be what is called the Cervical Plexus.

These nerves control the feelings and moving of the back of the head and the neck muscles.


(from: wikipedia - cervical plexus)


Kid Facts - Blast from the past: Median Cubital Vein

Tuesday, October 18, 2016

Somatic nervous system


We just learned about the coccygeal nerve, which is the last part of the Central Nervous System or CNS.

Remember we learned that the other part of the nervous system is the Peripheral Nervous System or PNS.

One part of that system is the Somatic Nervous System or SoNS, or voluntary nervous system.

These are all the nerves that go through your body to control muscles that you move on purpose, like your arms and legs.
The voluntary muscles are the ones you can control, like your feet.
Involuntary muscles are the ones you can't control, like your heart beating.


(from: wikipedia - somatic nervous system)


Kid Facts - Blast from the past: Axillary, Cephalic, Brachial Veins

Tuesday, October 11, 2016

Coccygeal nerve


We just learned about the Sacral Nerves.

Further down the spinal column is the Coccygeal nerve.
This is the last spinal nerve at the bottom of the spinal column.

The coccygeal nerve is the 31st pair of spinal nerves. It arises from the conus medullaris, and its anterior root helps form the coccygeal plexus. It does not divide into a medial and lateral branch. It is distributed to the skin over the back of the coccyx.

(from: wikipedia - spinal nerve)


Kid Facts - Blast from the past: Subclavian Vein

Tuesday, October 4, 2016

Sacral Nerves


We just learned about the Lumbar Nerves.

The spinal cord continues down below your back and into your Sacral Nerves.
There are 5 sacral nerves, named S1, S2, S3, S4 and S5.

These nerves help control your hips, legs and feet, and they also help control the organs in your lower abdomen like your colon and bladder.



(from: wikipedia - spinal nerve)


Kid Facts - Blast from the past: Superior Vena Cava

Tuesday, September 27, 2016

Lumbar Nerves


We just learned about the Thoracic Nerves.

The next part of the nervous system by the spinal column is the Lumbar Nerves.

These nerves control all the muscles from the lower abdomen down to the legs and feet.


(from: wikipedia - )


Kid Facts - Blast from the past: Inferior Venae Cavea

Tuesday, September 20, 2016

Thoracic Nerves


We just learned about the Cervical Nerves in your neck.

The spinal nerves in your upper back are called the Thoracic Nerves.

There are 12 of these nerves, numbered T1 through T12.
They help control and talk to the organs in your chest, back and stomach area.


(from: wikipedia - posterior branches of thoracic nerves)


Kid Facts - Blast from the past: Iliac Veins

Tuesday, September 13, 2016

Cervical Nerves


We just learned about the Dorsal Root.

The spinal nerves that that go up and down your spinal cord are split up by what section they are in.
The top section of spinal nerves between your head and your shoulders are called the cervical nerves.
There are 8 cervical spinal nerves, called C1, C2, C3, C4, C5, C6, C7, C8.

These nerves help control the muscles in your neck and your tongue.


(from: wikipedia - cervical spinal nerve 1)


Kid Facts - Blast from the past: Femoral Vein

Tuesday, September 6, 2016

Dorsal Root


We just learned about the anterior roots that are on the front part of the spinal nerve.

The nerves that come out the back side of the spinal nerve are the Dorsal Roots.
Dorsal means the top or backside, like a dorsal fin of the dolphin.


(from: wikipedia - dorsal root of spinal nerve)


Kid Facts - Blast from the past: Popliteal Vein

Tuesday, August 30, 2016

Anterior Roots


We just learned about the part in the middle of the spinal cord called the Grey Column.

Another part of the nervous system in the spinal column is the Anterior Roots or ventral roots.

These are the nerves that come out of the spinal cord on the anterior, or front side of the spinal cord.
They really are coming out the side of spinal cord, but on the front part of the side.


(from: wikipedia - ventral root of spinal nerve)


Kid Facts - Blast from the past: Fibular Vein

Tuesday, August 23, 2016

Grey Column


We just learned about the Spinal Nerve.

Another part of the central nervous system is the Grey Column.
This is inside the spinal column, and is made up of grey matter.


(from: wikipedia - grey column)


Kid Facts - Blast from the past: Tibial Veins

Tuesday, August 16, 2016

Spinal Nerve


We just learned about the Foramen Magnum.

A while back we learned about the bones in your back called the vertebrae.
These are the bones that help protect your spinal cord.
Inside each of these bones are some nerves called Spinal Nerves.

The main spinal cord goes down the middle, and the spinal nerves come out from the sides and go out to all parts of the body.


(from: wikipedia - vertebra)


Kid Facts - Blast from the past: Small Saphenous Veins

Tuesday, August 9, 2016

Foramen Magnum


We just learned about the Spinal Cord.

Where the spinal cord connects to the brain, there is a hole in the bottom of the skull.
That hole is called the Foramen Magnum which means Great Hole.


(from: wikipedia - foramen magnum)


Kid Facts - Blast from the past: Great Saphenous Vein

Tuesday, August 2, 2016

Spinal Cord


We just learned about all the parts of the Brain,
like the forebrain, midbrain, hindbrain and limbic system.

The other main part of the Central Nervous System is the spinal cord.

This is like a big thick bundle of wires that goes down your neck, and down your back.
It sends and receives information from every part of your body to your brain.


(from: wikipedia - spinal cord)


Kid Facts - Blast from the past: Dorsal Venous Arch