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THORAX SURFACE ANATOMY . Student who cheated in anatomy lab: counted own ribs Males and Females have same number of ribs (no, Eve wasn’t formed from one of Adam’s) . STERNUM manubrium xiphoid process SCAPULA spine medial border inferior angle RIBS. BONES. BACK

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THORAX SURFACE ANATOMY

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Thorax surface anatomy l.jpg

THORAX SURFACE ANATOMY

Student who cheated in anatomy lab: counted own ribs

Males and Females have same number of ribs (no, Eve wasn’t formed from one of Adam’s)

Human Anatomy, Larry M. Frolich, Ph.D.


Bones l.jpg

STERNUM

manubrium

xiphoid process

SCAPULA

spine

medial border

inferior angle

RIBS

BONES

Human Anatomy, Larry M. Frolich, Ph.D.


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BACK

“traps” (trapezius)

“lats” (latissimus dorsi)

erector spinae (cords in lumber region, great for massage--aaaaahhhh)

CHEST

“pecs” (pectoralis major)

serratus anterior

MUSCLES

Human Anatomy, Larry M. Frolich, Ph.D.


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Fun and Fitness Muscle Website

Human Anatomy, Larry M. Frolich, Ph.D.


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INTERCOSTAL MUSCLES

“COSTAL” = ribs

“intercostal” =

between the ribs

Function in posture, respiration

Human Anatomy, Larry M. Frolich, Ph.D.


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The Breast

  • Location: (female breast)

    • Superior border: 2nd rib

    • Inferior border: 6th rib

    • Medial border: Sternum

    • Lateral border: Midaxillary line

  • Location: (male nipple)

    • Fourth Intercostal Space, Midclavicular line

  • Underlying muscle

    • Pectoralis major and minor

    • Part of serratus anterior, external obliques

  • Lateral Thoracic Artery, branches of Internal Thoracic A., Post. Intercostals

  • Intercostal, Internal Thoracic, Axillary Veins

  • Branches of Intercostal Nerve

Human Anatomy, Larry M. Frolich, Ph.D.


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Mammary Glands

  • Lactiferous (modified sweat) Glands

  • Breast made of 15-25 lobes (each a compound alveolar gland)

  • Lobes made of lobules called acini, alveoli

  • Acini/Alveoli lined w/milk-secreting simple epithelial cells

  • Lactiferous Ducts of lobes open at nipple

  • Areola-ring of pigmented skin around nipple

    • Sebaceous gland produce sebum during nursing

  • Lobes separated by adipose tissue and suspended by connective tissue = Suspensory Ligaments of the Breasts

Human Anatomy, Larry M. Frolich, Ph.D.


Mammary gland l.jpg

Mammary Gland

Human Anatomy, Larry M. Frolich, Ph.D.


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