Scientific Illustration

The blood-brain barrier

(via neuroanatomyblog)

neuroanatomyblog:

Pons - between midbrain and medulla oblongata 

• Conduction pathway between higher and lower brain centers
• Middle cerebellar peduncles connect pons with the cerebellum
• Some pons nuclei (pneumotaxic and apneustic) are respiratory centers that help maintain normal rhythm of breathing.

Obligatory Anatomy Diagram of the Day:
Meninges [x]
Nervous system as requested by aebl

mmmm-oatmeal:

cortona - anatomy

mmmm-oatmeal:

cortona - anatomy

themightymelatonin:

Sensory Neuron:
1- Afferent Neuron – Moving away from a central organ or point
2- Relays messages from receptors to the brain or spinal cord

Sensory neurons are nerve cells within the nervous system responsible for converting external stimuli from the organism’s environment into internal electrical impulses.
For example, some sensory neurons respond to tactile stimuli and can activate motor neurons in order to achieve muscle contraction.
Such connections between sensory and motor neurons underlie motor reflex loops and several forms of involuntary behavior, including pain avoidance.
In humans, such reflex circuits are commonly located in the spinal cord.

(via neuroanatomyblog)

megat:

Locusta migratoria (African migratory locust) (via)

(via atelierentomologica)

wellcomebrains:

The Nervous System. Diagram of the brain, from De Homine by Rene Descartes, 1662.

Find and use this image on Wellcome Images.

Polychaete nervous system

From: ‘Beitrage zur Kenntnis des Nervensystems der Polychaeten by David Nilsson’

namopanik:

Diagram of the visual system. Ibn al-Haytham (circa 1027, published in 1083). The oldest known drawing of the nervous system shows a large nose at the bottom, eyes on either side, and a hollow optic nerve that flows out of each one towards the back of the brain.

(via fuckyeahmedicaldiagrams)