Lecture 21: Senses & Reflexes

Reflex

Involuntary response to stimuli

The flow of 8 steps of reflex arcs

Stimulus→ detected by receptor→ afferent or sensory neuron→ relay nerve (interneuron)→ efferent or motor → synapse→ effector

Where does the spinal reflex go to

spine

Where does the cranial reflex go to

brain

What 3 effectors fit under autonomic nerve system

smooth m, cardiac, gland

What effector fits under somatic nervous system

skeletal muscle

innate means

at birth

conditioned means

after birth

collateral response

response on different side of body

ipsilateral response is

response on same side

Suckling reflex

place something in baby’s mouth to mimic breast feeding

Rooting reflex

stimulating the babies face to turn head for food

Moro reflex (startle reflex)

if you stop supporting babies head arms thrust outward