Catalyst/Do Now 1. List five facial muscles 1. List five facial muscles 2. What is the coolest thing you did over break? 2. What is the coolest thing you did over break? Today’s Lesson Topic: Trunk Muscles Today’s Lesson Topic: Trunk Muscles

I hope you had an awesome break Anyone care to share? Anyone care to share? Now lets review… cause we know it’s a long one Now lets review… cause we know it’s a long one

Skeletal Muscle Tissue:

Skeletal Muscle defined as voluntary striated muscle that is usually attached to one or more bones defined as voluntary striated muscle that is usually attached to one or more bones usually called muscle fibers or myofibrils. usually called muscle fibers or myofibrils. fibers packed with protein microfilaments that overlap each other in such a way as to produce alternating light and dark bands, or striations. fibers packed with protein microfilaments that overlap each other in such a way as to produce alternating light and dark bands, or striations. Because of these striations, skeletal muscle appears striped Because of these striations, skeletal muscle appears striped

Skeletal Muscle, cont’d only muscle tissue that is voluntary because it is usually subject to conscious control, although sometimes it is activated by our reflexes. only muscle tissue that is voluntary because it is usually subject to conscious control, although sometimes it is activated by our reflexes. cells have many nuclei, so we call it multinucleate cells have many nuclei, so we call it multinucleate located in your skeletal muscles- the ones that attach to your bones to create organismal movement. located in your skeletal muscles- the ones that attach to your bones to create organismal movement. Key words for skeletal muscle are skeletal, striated, multinucleate, and voluntary. Key words for skeletal muscle are skeletal, striated, multinucleate, and voluntary.

Cardiac Muscle:

Cardiac Muscle also striated also striated involuntary- not normally under conscious control. involuntary- not normally under conscious control. Its cells are not fibrous in shape. Its cells are not fibrous in shape. They only have one nucleus, so we call the cardiac muscle cells uninucleate. They only have one nucleus, so we call the cardiac muscle cells uninucleate. It is only found in one place in the body- the heart. It is only found in one place in the body- the heart. The key words for cardiac muscle are cardiac, striated, uninucleate, and involuntary. The key words for cardiac muscle are cardiac, striated, uninucleate, and involuntary.

Smooth Muscle:

Smooth Muscle no striations in smooth muscle no striations in smooth muscle involuntary involuntary located mainly in the walls of hollow visceral organs such as the stomach, urinary bladder and respiratory passages. located mainly in the walls of hollow visceral organs such as the stomach, urinary bladder and respiratory passages. It propels blood through our blood vessels, which are also made from smooth muscle. It propels blood through our blood vessels, which are also made from smooth muscle. uninucleate, like cardiac muscle. uninucleate, like cardiac muscle. Key words for smooth muscle are visceral, nonstriated, involuntary, and uninucleate. Key words for smooth muscle are visceral, nonstriated, involuntary, and uninucleate.

Facial Muscles masseter buccinator occipitalis frontalis Orbicularis oris Orbicularis oculi Levator labii superioris sternocleidomastoid trapezius platysma temporalis mentalis Zygomaticus

Facial Muscles frontalis orbicularis oculi zygomaticus major

Facial Muscles orbicularis oris mentalis levator labii superioris

Today’s Objective SWBAT to list major muscles of the trunk region as well as their movements SWBAT to list major muscles of the trunk region as well as their movements

Muscles of the Arm Brachioradialis deltoid Brachialis Biceps Brachii Pectoralismajor

Posterior Torso Muscles trapezius deltoid latissimus dorsi infraspinatus teres minor teres major

Posterior Torso, cont’d Levator scapulae deltoid Latissimusdorsi infraspinatus supraspinatus Teres major Tricepsbrachii Teres minor

Abdominal Muscles external oblique rectus abdominis Internal oblique Transversus Abdominus

Be Prepared… Next class will be a test correction day WITH notes Next class will be a test correction day WITH notes This is why we have binders with our notes… So you can reference them! This is why we have binders with our notes… So you can reference them! You will received half credit for correct answers You will received half credit for correct answers You must put the correct answer then EXPLAIN the answer in AT LEAST one complete sentence. You must put the correct answer then EXPLAIN the answer in AT LEAST one complete sentence. This also will be a day for those that still need to take quizzes. This also will be a day for those that still need to take quizzes. Come with other work as well. Come with other work as well.