R 2 3 5 01 6 7 8 Dorsal cavities Ventral cavities
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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U U U U U U U / / / / 1
TOU
R-
Z
S
X
L
C
D. BODY CAVITIES AND REGIONS
The inside of the human body contains the viscera, or internal or-
gans. The viscera are found in any of a number of cavities (spaces)
within the body (Figure 1-3). The two principal groups of body cavi-
ties are the dorsal cavities and the ventral cavities. Because these
spaces are so large, they are sometimes subdivided into smaller units.
☐ 1 Using a dissectible torso model, find these divisions of the
dorsal cavities (and the organs within):
□ Cranial cavity-Within the skull. Organ: brain
spinal cord
Spinal cavity-Within the vertebral column. Organ:
□ 2 Using the torso model, find these divisions and organs of
the ventral cavities:
adh will no
Thoracic cavity-Within the rib cage
□ Pleural cavities-Left one-third and right one-third
of the thoracic cavity. Organ: lung
□ Mediastinum-Middle one-third of thorax. Organs:
heart, trachea, esophagus
1
2
3
4
5
6
7
8
N
M
-relo
Dorsal cavities
Ventral cavities
ED
FIGURE 1-3 Label the names of the body cavities on the lines provided
and on the blanks in the Lab Report at the end of this exercise.
Sikum
Anatomy and Physiology Lab Manual 5
□ Abdominopelvic cavity-From the diaphragm to the
bottom of the trunk
□ Abdominal cavity-From the diaphragm to the rim of
the pelvic bones. Organs: stomach, liver, most of the
intestines, pancreas, spleen, kidneys
Pelvic cavity-From the pelvic rim to the floor of the
trunk. Organs: portions of the intestines, ovaries.
uterus, urinary bladder
In addition to the dorsal cavities and the ventral
cavities, there are many smaller spaces in local re-
gions of the body also named as cavities (e.g., the oral
cavity and nasal cavity). The location and outlines of
important body cavities are described in the textbook.
3 Because the abdominopelvic cavity is so large and contains
so many different organs, it is often convenient to subdivide
it into nine abdominopelvic regions (Figure 1-4). The re-
gions are bounded by a grid made by imagining two hori-
zontal planes (one just below the ribs, the other just above
the hip bones) and two sagittal planes (each just medial to
a nipple). This arrangement forms a three-dimensional
(3D), tic-tac-toe grid in the abdominopelvic cavity. Label
each of the nine regions on Figure 1-4, and then identify
the approximate location of each region on a model of the
human torso:
Right hypochondriac region-Top right region (hypo-
chondriac means "below [rib] cartilage")
no Epigastric region-Top middle region (epigastric
means "near the stomach")
□ Left hypochondriac region-Top left regionabi
□ Right lumbar region — Middle right region (lumbar refers
to lumbar vertebrae in lower back)
□ Umbilical region-Central region (umbilical refers to
the umbilicus, or navel) bus labo
□Left lumbar region-Middle left region (lumbar refers
to lumbar vertebrae in lower back)
□ Right iliac region-Lower right region (iliac refers to
ilium, the bowl-like part of the hip bone)
Hypogastric region-Lower middle region (hypogastric
means “below the stomach") a
Ingre
Left iliac region-Lower left region D
□4 Physicians and other health professionals often use a sim-
pler method to divide the abdominopelvic cavity. Using one
horizontal line intersecting with one vertical line at the
umbilicus, the abdominopelvic cavity can be easily seg-
mented into four quadrants (see Figure 1-4). Identify the
approximate locations of each of the four quadrants on a
model of the human torso:
Right upper quadrant (RUQ)
☐ Left upper quadrant (LUQ)
□ Right lower quadrant (RLQ)
Left lower quadrant (LLQ)
Copyright © 2023 by Elsevier Inc. All rights reserved.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffb25b0ff-86ac-466b-b424-dc665f371a2a%2F333dc0d1-2a09-40a7-9ebd-3909cb56ccc4%2Fmxqcli3_processed.jpeg&w=3840&q=75)
Transcribed Image Text:control
U U U U U U U / / / / 1
TOU
R-
Z
S
X
L
C
D. BODY CAVITIES AND REGIONS
The inside of the human body contains the viscera, or internal or-
gans. The viscera are found in any of a number of cavities (spaces)
within the body (Figure 1-3). The two principal groups of body cavi-
ties are the dorsal cavities and the ventral cavities. Because these
spaces are so large, they are sometimes subdivided into smaller units.
☐ 1 Using a dissectible torso model, find these divisions of the
dorsal cavities (and the organs within):
□ Cranial cavity-Within the skull. Organ: brain
spinal cord
Spinal cavity-Within the vertebral column. Organ:
□ 2 Using the torso model, find these divisions and organs of
the ventral cavities:
adh will no
Thoracic cavity-Within the rib cage
□ Pleural cavities-Left one-third and right one-third
of the thoracic cavity. Organ: lung
□ Mediastinum-Middle one-third of thorax. Organs:
heart, trachea, esophagus
1
2
3
4
5
6
7
8
N
M
-relo
Dorsal cavities
Ventral cavities
ED
FIGURE 1-3 Label the names of the body cavities on the lines provided
and on the blanks in the Lab Report at the end of this exercise.
Sikum
Anatomy and Physiology Lab Manual 5
□ Abdominopelvic cavity-From the diaphragm to the
bottom of the trunk
□ Abdominal cavity-From the diaphragm to the rim of
the pelvic bones. Organs: stomach, liver, most of the
intestines, pancreas, spleen, kidneys
Pelvic cavity-From the pelvic rim to the floor of the
trunk. Organs: portions of the intestines, ovaries.
uterus, urinary bladder
In addition to the dorsal cavities and the ventral
cavities, there are many smaller spaces in local re-
gions of the body also named as cavities (e.g., the oral
cavity and nasal cavity). The location and outlines of
important body cavities are described in the textbook.
3 Because the abdominopelvic cavity is so large and contains
so many different organs, it is often convenient to subdivide
it into nine abdominopelvic regions (Figure 1-4). The re-
gions are bounded by a grid made by imagining two hori-
zontal planes (one just below the ribs, the other just above
the hip bones) and two sagittal planes (each just medial to
a nipple). This arrangement forms a three-dimensional
(3D), tic-tac-toe grid in the abdominopelvic cavity. Label
each of the nine regions on Figure 1-4, and then identify
the approximate location of each region on a model of the
human torso:
Right hypochondriac region-Top right region (hypo-
chondriac means "below [rib] cartilage")
no Epigastric region-Top middle region (epigastric
means "near the stomach")
□ Left hypochondriac region-Top left regionabi
□ Right lumbar region — Middle right region (lumbar refers
to lumbar vertebrae in lower back)
□ Umbilical region-Central region (umbilical refers to
the umbilicus, or navel) bus labo
□Left lumbar region-Middle left region (lumbar refers
to lumbar vertebrae in lower back)
□ Right iliac region-Lower right region (iliac refers to
ilium, the bowl-like part of the hip bone)
Hypogastric region-Lower middle region (hypogastric
means “below the stomach") a
Ingre
Left iliac region-Lower left region D
□4 Physicians and other health professionals often use a sim-
pler method to divide the abdominopelvic cavity. Using one
horizontal line intersecting with one vertical line at the
umbilicus, the abdominopelvic cavity can be easily seg-
mented into four quadrants (see Figure 1-4). Identify the
approximate locations of each of the four quadrants on a
model of the human torso:
Right upper quadrant (RUQ)
☐ Left upper quadrant (LUQ)
□ Right lower quadrant (RLQ)
Left lower quadrant (LLQ)
Copyright © 2023 by Elsevier Inc. All rights reserved.
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