Class Outline: Posterior Anatomy 5 minutes Breath of Arrival and - - PowerPoint PPT Presentation

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Class Outline: Posterior Anatomy 5 minutes Breath of Arrival and - - PowerPoint PPT Presentation

Aug 30, 2023 220 likes •866 views

Class Outline: Posterior Anatomy 5 minutes Breath of Arrival and Attendance 5 minutes Howdy Partner 35 minutes Posterior Anatomy using Power Point Presentation 5 minutes Overview of skeletal segments 5 minutes Quick drawing

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Class Outline: Posterior Anatomy

 5 minutes

Breath of Arrival and Attendance

 5 minutes

Howdy Partner

 35 minutes

Posterior Anatomy using Power Point Presentation

  • 5 minutes

Overview of skeletal segments

  • 5 minutes

Quick drawing of the superficial muscles (Salvo page 420)

  • 25 minutes

Review each skeletal segment adding muscle names, origins, insertions  10 minutes

OIA’s

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SLIDE 2

Classroom Rules

Punctuality- everybody's time is precious:

  • Be ready to learn by 9:00, we'll have you out of here by 1:30
  • Tardiness: arriving late, late return after breaks, leaving early

The following are not allowed:

  • Bare feet
  • Side talking
  • Lying down
  • Inappropriate clothing
  • Food or drink except water
  • Phones in classrooms, clinic or bathrooms

You will receive one verbal warning, then you'll have to leave the room.

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Posterior Anatomy

Names, locations, and shapes of muscles

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Posterior Skeletal Segments

Giving names to the bones on the back of the body.

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Posterior Anatomy

As we explore the skeletal segments, label them with the images supplied.

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The Big Picture

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Head

Bones: skull or cranium

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Neck

Bones: cervical spine

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Trunk

Bones: thoracic spine, lumbar spine, and rib cage

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Shoulder Girdle

Bones: collar bone (clavicle) and shoulder blade (scapula)

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Arm (upper extremity)

Bones: arm bone (humerus), forearm bones (radius and ulna), and hand bones

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Pelvic Girdle

Bones: pelvic bones and tail bone (sacrum and coccyx)

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Thigh

Bones: thigh bone (femur)

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Leg

Bones: lower leg bones (tibia and fibula)

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Foot

Bones: heel bone (calcaneus), and lots of others

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Posterior Muscles

Giving names, shapes and locations to muscles

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Let’s draw the superficial muscles!

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Head These muscles will be covered in Class 11a: Muscles of the Head / Neck

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Neck Muscle: upper trapezius Origin: skull and cervical spine Insertion: shoulder girdle (scapulae)

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Neck Muscle: upper trapezius (upper traps) Origin: skull and cervical spine Insertion: shoulder girdle (scapulae)

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Trunk Thorax and Lumbar Vertebrae

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Trunk Muscle: middle trapezius (middle traps) Origin: thoracic spine Insertion: shoulder girdle (scapulae)

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Trunk Muscle: lower trapezius (lower traps) Origin: thoracic spine Insertion: shoulder girdle (scapulae)

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Trunk Muscle: rhomboids Origin: thoracic spine Insertion: shoulder girdle (scapulae)

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Trunk Muscle: levator scapula Origin: cervical spine Insertion: shoulder girdle (scapulae)

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Overview and Layers of the Trunk trapezius levator scapula rhomboids serratus anterior

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Trunk Muscle: erector spinae (back strap muscles or spinal erectors) Origin: pelvis, spine, and ribs (lower) Insertion: upper spine and ribs, and skull

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Trunk Muscle: latissimus dorsi (lats) Origin: pelvis, thoracic and lumbar spine Insertion: upper arm (proximal humerus)

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Other stuff let’s zoom in . . .

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Other stuff that we’ll study later teres major infraspinatus teres minor

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Arm

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Arm Muscle: deltoid (posterior deltoid) Origin: shoulder girdle Insertion: arm (humerus)

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Arm Muscle: deltoid (posterior, middle, and anterior) Origin: shoulder girdle Insertion: arm (humerus)

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Arm Muscle: triceps brachii (triceps) Origin: shoulder girdle Insertion: proximal forearm (ulna)

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Arm Muscle: triceps brachii (triceps) Origin: shoulder girdle Insertion: proximal forearm (ulna)

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Forearm Muscle: forearm extensors Origin: proximal arm (humerus) Insertion: fingers

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Pelvis Gluteal muscles

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Pelvis Muscle: gluteus maximus Origin: sacrum and upper (proximal) pelvis Insertion: upper thigh (proximal femur)

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Pelvis Muscle: gluteus medius Origin: upper (proximal) pelvis Insertion: upper thigh (proximal femur)

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Pelvis gluteus medius gluteus maximus

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Thigh Hamstrings

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Thigh Muscle: biceps femoris (lateral hamstring) Origin: Insertion:

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Thigh Muscle: semitendinosus (medial hamstring) Origin: Insertion:

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Thigh Muscle: semimembranosus (medial hamstring) Origin: Insertion:

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Layering and Positioning of Thigh Muscles semimembranosus is deep to semitendinosus biceps femoris is lateral to semitendinosus and semimembranosus

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Other stuff that we will study later adductors (from pelvis to femur) iliotibial band (from pelvis to tibia)

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Leg Calf muscles, or calves

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Leg Muscle: gastrocnemius (gastroc) Origin: lower thigh (distal femur) Insertion: heel bone (calcaneus)

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Leg Muscle: soleus Origin: leg (tibia and fibula) Insertion: heel bone (calcaneus)

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Layering of Leg Muscles gastrocnemius (superficial) soleus (deep)

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Introducing the concepts of OIA

Where do muscles begin and end? What do they do?

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Where are the hamstrings?

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The hamstrings are here . . . Let’s zoom in.

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Please turn to packet page II-33

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OIA’s (origin, insertion, and action)

Belly The wide central portion of a skeletal muscle. Tendon Cord-like structure anchoring the end of a muscle to a bone. Origin Tendinous muscle attachment on the less movable bone. Insertion Tendinous muscle attachment on the more movable bone. Action The movement caused by the contraction of a muscle.

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Biceps Femoris Origin:

  • Ischial tuberosity
  • Linea aspera of femur

Insertion:

  • Head of fibula

Actions:

  • Flex the knee
  • Extend the hip

Resource Pages Salvo: 538 Trail Guide: 311-313 Coloring Book: 55

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Semitendinosus Origin:

  • Ischial tuberosity

Insertion:

  • Medial proximal tibia

(AKA: pes anserinus) Actions:

  • Flex the knee
  • Extend the hip

Resource Pages Salvo: 538 Trail Guide: 311-313 Coloring Book: 55

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Semimembranosus Origin:

  • Ischial tuberosity

Insertion:

  • Posterior medial tibial condyle

Actions:

  • Flex the knee
  • Extend the hip

Resource Pages Salvo: 537 Trail Guide: 311-313 Coloring Book: 55

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Hamstrings: the posterior thigh muscles

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Posterior Anatomy

Names, locations, and shapes of muscles