Your _______ nervous system is made up by the network of nerves that stretch to almost every part of your body. A. sensory B. peripheral C. central D. pulmonary B right?
@shrutipande9
peripheral i guess.
The PNS contains only nerves and connects the brain and spinal cord (CNS) to the rest of the body. Cranial nerves in the PNS take impulses to and from the brain (CNS). Spinal nerves take impulses to and away from the spinal cord. Sensory (afferent) pathways provide input from the body to the CNS. Motor (efferent) pathways carry signals to muscles and glands (effectors). Most sensory input carried in the PNS remains below the level of conscious awareness. Input that does reach the conscious level contributes to perception of our external environment. The peripheral nervous system consists of all body nerves. Motor neuron pathways are of two types: somatic (skeletal) and autonomic (smooth muscle, cardiac muscle, and glands). The autonomic system is subdivided into the sympathetic and parasympathetic systems.
sensory nervouse system- ~ Receptors are parts of the nervous system that sense changes in the internal or external environments. Sensory input can be in many forms, including pressure, taste, sound, light, blood pH, or hormone levels, that are converted to a signal and sent to the brain or spinal cord.
check dis pic...peripheral nerves practically reach every body part.
im thinkink its periphial
oooppss...i forgot 2 give d link..here it is.. http://en.wikipedia.org/wiki/File:Nervous_system_diagram.png
u r right @katlin95
how about this one @shrutipande9 The soft, spongy tissue of the lungs is composed of millions of microscopic sac-like structures called: A. bronchioles B. alveoli C. mitochondria D. cilia wouldnt it be A?
alveoli...
really?
he bronchioles or bronchioli are the passageways by which the air passes through the nose or mouth to the air sacs of the lungs in which branches no longer contain cartilage or glands in their submucosa. They are branches of the bronchi. The bronchioles terminate by entering the circular sacs called alveoli.
ok ur right:)
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