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LIF301
Advanced Anatomy
Torso Review:
Bony Landmarks and Muscles
of the Anterior Torso
Vocabulary and Word Roots
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anterior: front side of the body
posterior: back side of the body
thorax: rib cage and everything inside it
abdomen: non-bony part of anterior torso
rectus: running straight up and down
oblique: running at an angle
serratus: serrated, or jagged
alba– white (linea alba, albino)
costo– rib (costosternal joints)
Skeletal Landmarks of the
Anterior Torso
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jugular notch
sternal angle
thoracic arch
inguinal ligaments
Muscle Landmarks of the
Anterior Torso
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Pectoralis major muscle
Serratus anterior muscle
Rectus abdominis muscle
External oblique muscle
Linda alba
Interrupting tendons
Umbilicus
Jugular Notch and Sternal Angle
Jugular Notch and Sternal Angle
Jugular Notch and Sternal Angle
Sternal Angle and Thoracic Arch
Thoracic Arch and Inguinal Ligaments
Anterior Torso Muscle Overview
Pectoralis Major
Pectoralis Major
Pectoralis Major
Pectoralis Major
Pectoralis Major and its Relationship
to the Thoracic Arch
Pectoralis Major and its Relationship
to the Axilla
Serratus Anterior
Serratus Anterior
External Oblique
External Oblique
External Oblique
External Oblique
External Oblique
Rectus Abdominis
Rectus Abdominis
Linea Alba and Interrupting Tendons
Linea Alba and Interrupting Tendons
Umbilicus
Umbilicus
Assignment
Diagram the anterior torso and show the proper placement of the
structures covered this week. Use simple outlines for all shapes.
• Pay close attention to these relationships:
– the space between the thoracic arch and the inguinal ligaments
– the relationship between the pectoralis major muscles and the
thoracic arch
– the relationships between the umbilicus, linea alba, and
interrupting tendons
• Color code the shapes:
– muscles; reddish brown
– bones; yellow
– ligaments and tendons; light blue
• Label all structures