Muscle Fibers and NMJ Identification

BIO 201 Anatomy and Physiology

Figure A

Tendon

Figure B

Deep fascia

Figure C

Perimysium

Figure D

Epimysium

Figure E

Fascicle

Figure F

Muscle fiber

Figure H

Endomysium

Figure I

Myofibril

Figure A

Z disc

Figure B

Actin (thin)

Figure C

Myosin (thick)

Figure D

M line

Figure E

Connectin

Figure F

Sarcomere

Figure G

I band

Figure H

Zone of overlap

Figure I

H zone

Figure J

A band

Figure A

Z disc

Figure B

M line

Figure C

I band

Figure D

H zone

Figure E

A band

Is this muscle relaxed, partially contracted, or maximally contracted?

Relaxed

Is this muscle relaxed, partially contracted, or maximally contracted?

Partially contracted

Is this muscle relaxed, partially contracted, or maximally contracted?

Maximally contracted

Is this a thin (actin) or thick (myosin) filament?

Thick (myosin)

Is this a thin (actin) or thick (myosin) filament?

Thin (actin)