Axial skeleton
💀
The portion of the skeleton that
supports and protects the head,
neck, and trunk.
Appendicular skeleton
🦵💪👋🦶
The portion of the skeleton that
attaches to the axial skeleton
and has the limbs attached to it.
Exoskeleton
🦗🕷🐜🐞
A body covering, typically made
of chitin, that provides support
and protection.
The three components of
the human superstructure:
- The skeleton
2. The muscles
3. The skin
What are the main differences
between smooth and skeletal
muscles?
- Microscopically skeletal
appears rough and striped.
and smooth appears smooth
and unstriped.
2. Skeletal muscles are voluntary
( operated by conscious thought)
Smooth muscles are involuntary
(operated unconsciously by the
brain)
Is cardiac muscle voluntary or
involuntary?
What muscle is cardiac
muscle?
Cardiac muscle is in the
heart.
This muscle is
involuntary.What cells are produced
by the red bone 🦴 marrow?
Blood cells are produced
in the red bone marrow.
What is keratinization?
Keratinization is a process that hardens living
cells. It creates the outer layer of the
epidermis and hair and nails. The process
kills cells in this process.
(This is why fungi often infect these areas)
What are two major components
of bone?
Which one makes bones
flexible?
Which one makes bones hard
and strong?Collagen and minerals are two
major components of bone.
Collagen makes bones flexible
and minerals make bones hard
and strong.What is the difference between
spongy and compact bone
tissue?
Compact bone tissue is
packed together tightly.
Spongy bone has lots of
space between its fibers
so it is lighter in weight
than compact bone.Are bones living?
Bones are alive!
Living cells are imbedded in bone
allowing us to grow.
What is the difference between
invertebrates and vertebrates?
To what kingdom do they belong?
Vertebrates have backbones
invertebrates do not have
backbones. Both belong in
the kingdom Animalia.
Any organism from a kingdom
other than Animalia would be
neither an invertebrate or
vertebrate.Is the neck a part of the
appendicular or axial skeleton?
The neck is a part of the axial
skeleton.
What are creatures with
exoskeletons called?
Creatures with exoskeletons
are called arthropods.
What is the function of ligaments?
Ligaments hold the bones of the
joints together.
What are tendons?
Skeletal muscles end in tendons
and the tendons attach muscle to the
skeleton.
A plants ability to move towards the light is called what?
A plants ability to grow towards
the light is called phototropism.
Describe two functions of
hair.
Hair serves the functions of
providing insulation and sensation.
What is the purpose of sweat?
Sweat cools the body and
helps feed the beneficial
bacteria and fungi living on the skin.
What do sebaceous glands do?
Sebaceous glands produce oil that softens the skin and hair
and makes it hard for pathogenic
bacteria to attach themselves to the skin.
