Page 14 - Prueba

1. For each of the cases below, say what type of receptor is
involved and why the person responded to the stimuli. 4. Your parents blindfold you and tell you that they’re taking
you out for a surprise on your birthday. While you’re in
a) Jenny steps outside, but she the car, you sense that you’re moving.
goes back in to get a coat. It is a) Which sensory organ is responsible for this perception?
colder outside than it is inside. b) Describe how the sensory system responsible sends
information to the brain regarding: acceleration, braking
at a traffic light and turning a corner.

5. In the reality television show MasterChef, contestants are
b) Mary just fell asleep on the often challenged to do a blind taste test. They are
couch. When Tom covers her blindfolded and asked to identify certain ingredients that
with a blanket, she wakes up. they eat. How do the nose and tongue help the contestants
to name the ingredients?

c) Jane gets a surprise bouquet at
work. The fragrance of the
flowers fills the office and
everyone can smell them.

d) Tony hurt his head while playing
football. The doctor shines a 6. A young man decides to go jogging in the park. The more
bright light into Tony’s eyes. he jogs, the quicker his heart rate is. After half an hour, he
Tony blinks. stops at a small stall to buy a healthy snack. His heart rate
slows gradually to normal.

He sits on a bench, opens the seed bar and moves it to his
e) Little Bobby cried when he fell mouth. He chews a piece and swallows. His oesophagus
pushes the piece of seed bar to his stomach where the
at school and cut his knee. muscular walls mix the food with digestive juices.
a) What types of muscles are involved in each movement?
b) Which muscles are controlled voluntarily and which
are involuntary?
c) Name at least two types of joints in the leg that move
2. Place the following events that relate to how the eyes while the young man is jogging.
respond to stimuli, in chronological order. Begin with the
moment the eye sees an image and finish when the brain 7. Look at the pictures below. Briefly describe to a partner
responds to the vision. the difference between a ligament and a tendon.
a) The ciliary muscles and suspensory ligaments adjust the
lenses.
b) The eyes align and converge to focus the image in the
retina’s centre.
c) An inverted image is focused onto the retina.
d) The brain receives nerve impulses via the optic nerves and 8. In your spinal column there is cartilage between vertebrae
deciphers what we see.
(the intervertebral discs) that allows for slight movement
e) The pupils contract or dilate. of the vertebrae. They also act as ligaments to hold your
vertebrae together, and as shock absorbers.
3. Tinnitus is a disorder where you hear certain annoying
sounds, like ringing or buzzing, but there are no external Do some research and discuss at least two consequences
sounds present. Do some research and discuss what can of damage to the intervertebral discs.
cause tinnitus and which part of the ear is affected.

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