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Is it true that Annelids have a well developed cerebral ganglion or brain in one of their anterior segments?
Annelids have well developed brain or cerebral ganglion contained in one of their anterior segments
Where is the Cerebral ganglion?
I the head. - earthworm
Do annelids have a complex organ system?
Yes, annelids have a relatively complex organ system compared to other invertebrates. They have a well-developed digestive system, a closed circulatory system, a nervous system with a ventral nerve cord, and excretory organs called metanephridia. Overall, annelids exhibit a higher level of organization than simpler invertebrates.
What is a basal ganglion?
A basal ganglion is any of a group of nuclei in the brain interconnected with the cerebral cortex, the thalamus and the brainstem.
An earthworm has an anterior ganglion This structure is part of the?
nervous system
What is cerebral ganglion in earthworms?
The Ganglia is a part of the nervous systemThe Ganglia is a mass of nerve tissue existing outside the central nervous system.To make a long story short it's a brain.
What is the difference between a brain and a cerebral ganglion?
The term cerebral ganglion is reserved for invertebrate, while the term brain gaglion is used in reference to those with vertebrae. The ganglion refers to a cluster of nerves cells located in the peripheral nervous system.
What is the sympathetic ganglion that distributes postganglionic neuron processes to the kidneys and gonads?
The sympathetic ganglion that distributes postganglionic neuron processes to the kidneys and gonads is the prevertebral ganglion called the superior mesenteric ganglion. It is located in the abdominal cavity, anterior to the aorta and just below the origin of the superior mesenteric artery.
How an earthworm demonstrates cephalization?
An earth worm demonstrate cephalization through an an enlarged ganglion that acts as a simple brain. One particular part of the earth worms nervous system, an enlarged ganglion, does act as a simple brain, and it is located in the anterior portion of the earthworm's anatomy. Hence, the earthworm exhibits cephalization.
Where along a reflex arc would you find association neurons?
From the posterior root ganglion to the anterior horn of the spinal cord.
Where does synapses occur in the spinal cord?
Cell body of sensory neuron - in dorsal root ganglion. Cell body of motor neuron - in anterior gray horn.
What is the plural of ganglion?
The plural of ganglion is ganglia or ganglions.
