BSC 2346 Human Anatomy and Physiology I
Anatomy and Physiology Midterm Exam
which type of gland is primarily found in the external acoustic meatus?
- Ceruminous gland
which structure provides a route for blood vessels to run through each osteon?
- Haversian Canals
which cells started as osteoblasts and became trapped in the bone matrix as they matured?
- Osteocyte
pH of 12 is considered
- Basic
what is a function of the skeletal system?
- storage of calcium
where are trabeculae found?
- Spongy bone
what part of the skeleton are the ribs found?
- Axial skeleton
platelet plug formation to create a blood clot is an example of
- positive feedback
one motor neuron and all the skeletal muscle cells stimulated by that neuron
- motor unit
which muscle type is striated and contains intercalated discs?
- cardiac muscles
what is the function of myoglobin?
- stores oxygen
where are myosin heads found
- Thick filament
which organelles are the location for protein synthesis?
- Ribosomes
what two layers compose the dermis layer
- papillary
- reticular
all skeletal muscles contract by sliding with
- sarcomeres
yellow bone marrow is found in
- medullary cavity
most superficial layer of epidermis
- stratum corneum
what process is capable of moving molecules from low to high concentration?
- active transport
lightweight interior of bone is composed of?
- spongy bone
first step to scientific process
- observe and generalize observations
describe osteoblasts
- bone matrix forming cells
what cell is responsible for "building" bone density
- osteoblasts
smallest contractile unit of a muscle fiber
- sarcomere
what is made of keratinocytes?
- nails and hair
what gland secretes milk?
- mammary gland
what layer contains melanocytes
- epidermis
what skin layer is deepest
- hypodermis
What does the perimysium cover?
- muscle fascicle
DNA is found in what organelle
- Nucleus
Most deadly type of skin cancer
- melanoma
first step of bone repair
- hematoma formation
what organelle produce ATP
- Mitochondria
definition of osmosis
- water diffusion across semipermeable membrane
how are autosomal recessive genes expressed
- Must have two recessive genes
Blood sugar, body temp and HR are examples of what kind of loop?
- negative feedback