lab exam

what type of vertebrae is this

atlas

what type of vertebrae is this

axis

What do the superior articulating facets articulate with and what motion does that joint allow our heads to do?

skull, allow the “yes” motion.

What does the Odontoid process articulate with and what motion does that joint allow our heads to do

anterior arch of atlas vertebrae, allows the “no” motion

what vertebrae is this

cervical

what vertebrae is this

thoracic

what vertebrae is this

lumbar

diploids

2n, full set of chromosomes

Haploids

n, half set of chromosomes,

what stage of endochondrial ossification is this showing

resting

what stage of endochondrial ossification is this showing

hypertrophy

what stage of endochondrial ossification is this showing

proliferative

what stage of endochondrial ossification is this showing

calcification

sarcomere of skeletal muscles, what is “1”

A band

sarcomere of skeletal muscles, what is “2”

I band

sarcomere of skeletal muscles, what is “3'“

Z line

sarcomere of skeletal muscles, what is “4”

H band

sarcomere of skeletal muscles, what is “5”

sarcomere

What type of protein filament(s) are found in the A band?

myosin and actin filaments

What type of protein filament(s) are found in the H band?

myosin filaments

What type of protein filament(s) are found in the I band?

thin actin filaments

what is 1

cornea

what is 2

sclera

what is 3

optic nerve

what is 1

viterous humor

what is 2

lens

what is 1

retina

what is 2

choroid

what is 1

pupil

what is 2

iris

What is a blind spot?

a small area in the retina where the optic nerve exits the eye which is called the optic disc

Why aren’t we normally aware of blind spots

because our brain filters them out. Each eye compensates for the other eyes blind spot when both eyes are open

What is presbyopia?

condition in where the lens of the eye loses flexibility. It usually becomes noticeable around/after the age of 40

What causes presbyopia

the gradual hardening and loss of elasticity of the eye lens. The ciliary muscles struggle to change their shape.

what is another term for nearsightedness

myopia

what is anouther term for farsightedness

hyperopia

where on the body do we find the greatest density of receptor fields

fingertips, face, lips

merkel cells (disks), meissners corpuscles, Krause endbulbs, and the root hair plexus are all

touch receptors

what is 1

basement membrane

what is 2

sperm cell (n)

what is 3

spermatid (n)

what is 4

primary spermatocyte (2n)

what is 5

spermatogonium cell (2n)