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interpreting our world

Miguel Insausti Castro

Created on November 10, 2024

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Transcript

Interpreting our world

Index

  1. What do our senses do?
  2. Sight
  3. Smell and taste
  4. Hearing
  5. Touch
  6. The central nervous system
  7. The peripheral nervous system
  8. Neurons
  9. The skeleton
  10. Types of bones and types of joints
  11. Muscles
  12. Types of muscles
  13. Quiz

What do our senses do?

We receive information about the world from our sense organs: the eyes, ears, nose, mouth and skin. Hearing, sight, touch, smell and taste are our five senses

Sight

lens
retina
iris
cornea
pupil

Hearing

eardrum
cochlea
auditory nerve

Smell and taste

olfactory bulb
olfactory receptors
nostril
tongue
taste bud
nerve

Touch

hypodermis
dermis
epidermis

The central nervous system

cerebrum
brainstem
cerebellum
spinal cord

The peripheral nervous system

The nerves allow the brain and spinal cord to receive and send information from and to other parts of the body

Neurons

synapses
axons
dendrites
cell body

The skeleton

skull
sternum
ribs
ulna
scapula
clavicle
radius
humerus
pelvis
vertebra
femur
patella
tibia
There are 206 bones in the human body
fibula

Types of joints

Types of bones

Fixed joints, such as those in the skull, do not move
Flat bones, such as the sternum, protect our organs
Short bones, such as the vertebra, give stability and support
Semi-flexible joints, such as the vertebra allow some movement
Long bones, such as the femur, are found in arms and legs
Flexible joints, such as our knees, allow movement in different directions
pectorals

Muscles

triceps
frontalis
biceps
trapezius
deltoid
gluteus
quadriceps
biceps femoris
abdominals
calf muscles

Types of muscles

Skeletal muscles are involuntary. we decide when and how to move them.They are attached to bones by tendons
Smooth muscles are involuntary.They function automatically and we cannot control them.
The cardiac muscle is a involuntary muscle that keeps the heart moving