Cells
Mitochondria
Bone tissue is also known as ___
osseus tissue
What are 3 of the 4 types of joints
- Ball & Socket
- Hinge
- Pivot
- Saddle
Name one function of the muscular system
generating body heat
maintaining posture
The nervous system includes the ___, ___, and ____.
Brain, spinal cord, and nerves
Molecules tend to move from areas of ___ concentration to ___ concentration.
high, low
Tissues are based on the ___ of the cells and the ___ of the cells.
shapes, layers
Name one function of the skeletal system.
Support and protection
Body movement
blood cell formation
storage of inorganic materials
2 types of Myofilaments
Myosin - thin filaments
Actin - thick filaments
2 examples of neurotransmitters
Dopamine
Acetylcholine
Serotonin
Endorphins
Name 2 organelles and their function
ER - connect membrane to nucleus and organelles within cell
Golgi apparatus - Package and deliver proteins
Mitochondria - Produce ATP
Lysosomes - Contains enzymes to break down substances
Centrosomes - Form spindles that move chromosomes during cell division
Cytoskeleton- made of microfilaments for cell shape and support
Cilia & flagella - involved in movement
Nucleus - "brain" of the cell, direct cell activity, contains DNA
4 Major Types of Tissue
Epithelial, Connective, Muscle, Nervous
Our bodies consist of 206 bones in 2 main divisions the ___ and ___
appendicular and axial
What is muscular dystrophy and hypertrophy?
muscle dystrophy - a disorder causing muscle weakness and leasa to reduced mobility
muscle hypertrophy - muscles enlarge
Nerve pathway
Dendrite - cell body - along axon - synapse - dendrite
Diffusion and osmosis are examples of ___ transport
passive
What is the most abundant tissue in your body?
Connective tissue
Name one part of the bone and its location
Epiphysis - ends of bone
Diaphysis - shaft of the bone
Articular cartilage - cartilage covering the ends of bones
Periosteum - membrane covering entire bone
Medulla - within diaphysis, contains bone marrow
What are the three layers of connect tissue?
Epimysium
Perimysium
Endomysium
Connect both hemispheres of the brain
Steps of mitosis
Prophase - Metaphase - Anaphase - Telophase
What are the main types of fibers?
Collagenous fibers and elastic fibers
What forms part of the pectoral girdle?
Scapula, Clavicle, upper limbs (arms)
What is the name of the disease described? Autoimmune disease, means "grave muscular weakness", acetylcholine receptors are damaged
Myasthenia Gravis
What forms part of the brain stem?
Midbrain, Pons, and medulla oblongata