a. of or relating to nerves or neurons that carry impulses that cause muscles to contract b. of or relating to movement or to muscles that induce movement vb 8. (Automotive Engineering) (intr) to travel by car 9. (Automotive Engineering) (tr) Brit to transport by car 10. (intr) infor...
1. Any of the cordlike bundles of fibers made up of neurons through which sensory stimuli and motor impulses pass between the brain or other parts of the central nervous system and the eyes, glands, muscles, and other parts of the body. Nerves form a network of pathways for conducting inf...
(4) parts of the nucleus solitarius, and (5) collections ofcatecholamineneurons in the ventrolateral lower brain stem. In addition, the raphe nuclei, which contain cells rich in serotonin, project bilaterally to spinal levels and modulate pain mechanisms.39Large cells in the paraventricular and ...
The interneur inhibits the motor neurons which supply the over-stretched muscle. Testing stretch reflexes One of the standard parts of a neurological examination is the testing of stretch reflexes. This is done by tapping a tendon (such as the patellar tendon just below the knee) with a ...
neurons that originate in these specific parts of the motor cortex. This is referred to as a somatotopic organization, in which the various portions of the body are represented topographically on specific regions of the cerebral gyri. The homunculus drawn on the surface of the human cerebrum ...
As described previously39, we observed proportionally more L2 and L3 intratelencephalic neurons in humans, representing a selective increase in the number of neurons projecting to other parts of the cortex, presumably to facilitate greater corticocortical communication. Humans and marmosets have ...
It comprises numerous nerve cells called neurons, which transmit impulses/messages from one body part to the other. A mass of interconnected nerve cells making up the brain and the spinal cord is called the central nervous system (CNS). The central nervous system is linked to the effectors (...
The designed guide RNA (gRNA) and an antisense oligo spast-MO were microinjected into Tg(hb9:GFP) zebrafish embryos, spinal cord motor neurons were observed, and a swimming behavioral analysis was conducted. Results A novel heterozygous intron variant, c.1004 + 5G > A, was ...
The small diagram on the left illustrates the gamma loop. Contractions of the polar parts of the muscle spindle initiate an afferent volley conducted centrally to alpha motor neurons. Discharge of the alpha motor neuron is conveyed to the motor end-plate of the same muscle. The gamma efferent ...
The facial motor nucleus refers to the main nucleus of the facial nerve located in the middle of the hindbrain. It consists of motoneurons that supply the muscles of the second embryological branchial arch, including the superficial muscles of the face and certain strap muscles. ...