_______________ dendritic endings consist of a dendrite enclosed in a connective tissue capsule
and detect discriminatory touch, initial, continuous, and deep pressure, and stretch of muscles, tendons, and joint capsules.encapsulatedGraded receptor potentials that can trigger action potentials to travel along the axon to the CNS.________receptors are stimulated by mechanical
force, such as touch, pressure, vibration, and
stretch.mechanoreceptors________receptors detect changes in temperature________receptors detect light.________receptors are stimulated by chemicals, such as odours, tastes, or chemical components of body fluids________ceptors respond to painful stimuli.What are exteroceptors?Are located at or near the body surface and detect stimuli from outside the body,
such as touch, pressure, pain, skin temperature
receptors, and most of the special senses.
(provide information about the external environment)What are interoceptors?Associated with internal organs and
vessels, monitor chemical changes, stretch, or
temperatureWhat are proprioreceptors?are found within skeletal muscles,
joints, and associated connective tissues and relay information about body movements____________ is the awareness
of changes in the internal and
external environment.sensation____________ is the conscious
interpretation of those stimuli.
First-order sensory neurons
carry impulses from receptors.
Second-order neurons transmit
to the cerebellum or third-order
neurons, which carry impulses
to the postfrontal gyrus.perceptionThe perception of pain protects....the body from
damage and is stimulated by extremes of pressure
and temperature, as well as chemicals released
from damaged tissuesThe pain _____________ is the stimulus intensity at
which we begin to perceive pain and is the same for
most people. Pain _____________ is a genetically
determined trait with learned aspects that varies
from person to person. Like any other perception,
perceived pain can be affected by the environmentVisceral pain results from...........stimulation of receptors
within internal organs from stimuli such as extreme
stretch, ischemia, chemical irritation, and muscle
spasmsVisceral pain travels along the same fibre tracts
as somatic pain impulses, giving rise to __________ pain that feels as though it is located in an area different from the affected body region.Peripheral nerves, either cranial or spinal, are classified according to....the direction in which they transmit impulses_________ nerves contain both sensory and motor fibres. Most nerves are mixed nerves.All ventral branches except T 2 -T 12 form interlacing networks called nerve plexuses. Within each plexus, fibres crisscross so that each branch contains fibres from several different spinal nerves. Fibres go to the
body periphery via several routes, so that each limb muscle is innervated by more than one spinal nerve and damage to one does not cause _____________paralysis_________________ are areas of skin innervated by cutaneous branches of a single spinal nerve. Most
dermatomes overlap, so destruction of a single spinal nerve will not cause complete numbnessDermatomesThe terminals of the somatic motor fibres that innervate voluntary muscles form neuromuscular
junctions with their effector cells and they release the neurotransmitter ______________.acetylcholineThe junctions between autonomic motor endings and the visceral effectors form synapses en passant
("synapses in passing") involving varicosities and release either ______________ or ______________ as their neurotransmitteracetylcholine or epinephrine
