Various Sensory SystemsBy Brianna Duncan Chandler SnowStephanie York
Receptors Mechanoreceptors- Responds to mechanical person or
distortion (physically touching the skin) Thermoreceptors- neurons that are sensitive to
change in temperature Chemoreceptors-changes chemical signal into action
potential Pain Receptors- cutaneous(skin), somatic (Joint and
bones), and visceral (body organs) send noxious signals into brain in response to damage stimuli
Interoreceptors- sensory receptor that detects stimulus within the body
Exteroreceptors- Receives external stimuli
PAIN RECEPTOR
How Hearing worksWhen an organism hears
something the sound wave travels to the inner ear and fluid, cause it to ripple. Hair cells detect the movement and send it to the brain.
EAR DIAGRAM
EYE DIAGRAM
RhodopsinRhodopsin is important because
it stimulates the rods nerve endings causing sight
Purpose of SkeletonProvides structure, facilitates
movement, and protects the human body
Muscular system and skeletal system interaction They create the framework for
the body.The muscles are connected to
the skeleton causing both to move as one.
Muscle ContractionThick filaments are made of myosin
and thin filaments are made of actin.Muscle fibers are stimulated by motor
neurons.During contractions thick filaments
grab onto the think actin filaments forming cross bridges. Myosin pull actin making the sarcomere shorter.
When its fully contracted actin and myosin are completely overlapped .
MUSCLE CONTRACTIONS
Types of Muscle Smooth Muscle Cardiac Muscle Skeletal Muscle
Involuntary Involuntary Voluntary
Composed of elongated spindle shaped cells
Quadrangular Composed of cylindrical fibers
Can be found in hollow visceral organs excluding the heart
Found in the heart Found attached to the skeleton
TYPES OF MUSCLES
Connection between smell and tasteIn most organisms the way food
smells affects its taste. This is because the nose detects the complex odor of the food while the tongue can only detect the taste of salty, sweet, sour, and bitter . The two work together in the brain and preserve the flavor.