ClipArt ETC
Reflex arc schematic. Labels: S.O., sensory organ; S.N., sensory neuron; N.C., nerve center; M.N., motor neuron; M.O., motor organ.

Nerve Reflex Arc

Reflex arc schematic. Labels: S.O., sensory organ; S.N., sensory neuron; N.C., nerve center; M.N., motor…

Reflex arc, as it is approximately in man. Labels: 1, nerve terminal, or sensory epithelium; 2, dendrite of sensory neuron; 3, cell body in dorsal root ganglion; 4, axon of sensory neuron; 5, dendrite of motor neuron; 6, cell body in ventral horn; 7, axon of motor neuron; 8, end organ (e.g., muscle-cell, gland-cell, etc.).

Nerve Reflex Arc

Reflex arc, as it is approximately in man. Labels: 1, nerve terminal, or sensory epithelium; 2, dendrite…

Scheme of the central motor neuron. The motor cell body, together with all its protoplasmic processes, its axis-cylinder process, collaterals, and end ramifications, represent parts of a single cell or neuron. Labels: a, h, Axone-hillock devoid of Nissl bodies, and showing fibrilation; c, cytoplasm showing Nissl bodies and lighter ground substance. n', nucleolus.

Scheme of the Central Motor Neuron

Scheme of the central motor neuron. The motor cell body, together with all its protoplasmic processes,…