Microscopic anatomy muscle

Acetylcholine and Acetylcholine Receptors (AChRs)

Fill in the blanks.

Mucosa

letter a

Submucosa

letter b

Nuclei

letter a

Smooth muscle cell

letter b

Intercalated discs

letter a

Nucleus

letter b

Blood vessel

letter a

Perimysium

letter b

Epimysium

letter c

Muscle fiber (cell)

letter d

Fascicle

letter e

Endomysium

letter f

Tendon

letter g

Bone

letter h

Multiple nuclei per fiber

letter a

Part of muscle fiber

letter b

Bone

letter a

Tendon

letter b

Fascia (covering muscle)

letter c

Epimysium

letter d

Perimysium

letter e

Perimysium

letter f

Fascicle

letter g

Axon of motor neuron

letter h

Blood vessel

letter i

Muscle fiber

letter j

Sarcolemma

letter k

Nucleus

letter l

Sarcoplasmic reticulum

letter m

Myofibril

letter n

Filaments

letter o

Endomysium

letter p

Sarcolemma

letter a

Mitochondrion

letter b

Myofibril

letter c

Dark A band

letter d

Light I band

letter e

Nucleus

letter f

Z disc

letter a

H zone

letter b

Z disc

letter c

Thin (actin) filament

letter d

Thick (myosin) filament

letter e

I band

letter f

A band

letter g

I band

letter h

M line

letter i

Thin (actin) filament

letter j

Thick (myosin) filament

letter k

Z disc

letter l

Sarcomere

letter m

Spinal cord

letter a

Motor unit 1

letter b

Motor unit 2

letter c

Axon terminals at neuromuscular junctions

letter d

Neuron

letter e

Axon of motor neuron

letter f

Muscle

letter g

Muscle fibers

letter h

Motor neuron cell bodies

letter i

Muscle fibers

letter a

Branching axon to motor unit

letter b

Axon terminals at neuromuscular junctions

letter c

Myelinated axon of motor neuron

letter a

Nerve impulse

letter b

Axon terminal of neuromuscular junction

letter c

Sarcolemma

letter d

Nucleus

letter e

Synaptic vesicle containing ACh

letter a

Axon terminal of motor neuron

letter b

Mitochondrion

letter c

Sarcolemma

letter d

Fusing synaptic vesicle

letter e

Sarcoplasm

letter f

Folds of sarcolemma

letter g