Quiz 4 Study Guide: Anatomy Lab 1

What muscle is this

Orbicularis oculi

What muscle is this

Zygomaticus major

What muscle is this

Buccinator

What muscle is this

Platysma

Primary muscle used in breathing

Diaphragm

Muscle group responsible for posture and spinal extension

Erector Spinae group

What muscles are in the erector spinae group

Iliocostalis, Longissimus, Spinalis

Midline connective tissue separating left and right abdominal muscles

Linea alba

Function of quadriceps femoris group

Extension of knee, flexion of hip

Muscles included in quadriceps femoris group

Rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

Function of hamstring group

Flexion of knee, extension of hip

Muscles included in the hamstring group

Biceps femoris, semitendinosus, semimembranosus

Corpus callosum

Cerebellum

Thalamus

Pons

The part of the neuron that receives the signal

Dendrites

The CNS cell that creates myelin

Oligodendrocyte

Body processes the nervous system helps regulate

Respiration, heart rate and blood pressure, digestion, body temperature, movement and coordination, sensory processor, sleep and wake cycles

Region that contains motor neuron cell bodies

Ventral horn of the spinal cord’s gray matter

Brain surface landmark: Sulci

Grooves or furrows on the brain’s surface

Brain Surface Landmarks: Gyri

Raised ridges or folds between the sulci

Sulci and gyri functions together

Increased surface area, support complex brain functions, create anatomical boundaries