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1. Anatomy Terminology > Cavities Of The Body > Flashcards

Cavities Of The Body Flashcards

1
Q

Functions of cavities in the body

A
  1. Protection
  2. Compartmentalization
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2
Q

How many major cavities do we have in the body

A

Five major cavities

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3
Q

The cavities in the body are described according to their?

A
  1. Location
  2. Borders
  3. Contents
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4
Q

Based on location, the cavities are divided into two parts namely?

A

Dorsal cavity and ventral cavity

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5
Q

Dorsal cavity houses the?

A

Central nervous system

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6
Q

The dorsal cavity is divided into two parts namely

A
  1. Cranial cavity
  2. Vertebral canal
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7
Q

The cranial cavity and vertebral canal are joined together through the

A

Foramen magnum at the base of the skull

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8
Q

The cranial cavity is composed of

A

Bones of the skull except the mandible

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9
Q

The cranial cavity is made up of which bones?

A
  1. Ethmoid bone(1)
  2. Sphenoid bone(1)
  3. Frontal bone(1)
  4. Parietal bones (2)
  5. Temporal bones (2)
  6. Occipital bone (1)
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10
Q

The bones that make up the cranial cavity are also called?

A

Neurocranium

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11
Q

Calvaria

A

It the skullcap
Made of upper portions of frontal bone, parietal and occipital bones

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12
Q

The base of the skull is divided into three fossa namely

A
  1. Anterior cranial fossa
  2. Middle cranial fossa
  3. Posterior cranial fossa
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13
Q

The contents of the cranial cavity

A
  1. The brain
  2. The meninges
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14
Q

Borders of the vertebral canal

A
  1. Anterior border:
    - Vertebral body
    - Intervertebral disc
    - posterior longitudinal ligament
  2. Lateral border
    - Pedicle
    - Transverse process
  3. Posterior border
    - Lamina
    - Spinous process
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15
Q

The epidural space contains?

A

Epidural fat

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16
Q

Cauda Equina

A

This a bundle of spinal nerves and nerve rootlets from the spinal cord which ends at L1/L2

17
Q

Describe how the meninges cover the cauda equina

A

The dura and arachnoid matter cover the cauda equina into the sacrum
And the pia matter covers the cauda equina all the way to the coccyx as the filum terminale acting as an anchor to the spinal cord

18
Q

The ventral cavity is composed of

A
  1. Thoracic cavity
  2. Abdominal cavity
  3. Pelvic cavity
19
Q

Thoracic cavity is composed of

A
  1. Pleural sac
  2. Superior mediastinum
  3. Inferior mediastinum ( pericardial sac)
20
Q

The thoracic cavity is mare up of thoracic wall which has

A
  1. Ribs
  2. Costal cartilages
  3. Sternum
21
Q

Borders of the thoracic cavity

A
  1. Superiorly
    - The body of first thoracic vertebrae
    - first ribs
    - manubrium of sternum
  2. Inferiorly
    - Respiratory diaphram
  3. Posterior, lateral, anterior
    - Vertebral bodies
    - ribs
    - sternum
    - intercostal muscles
22
Q

The superior border of the thoracic cavity forms the

A

The superior thoracic aperture

23
Q

Contents of the thoracic cavity

A

Trachea, bronchi, esophagus, lungs, heart, the great vessels

24
Q

Functions of the pleural cavity

A
  1. It has pleural fluid which lubricates the lungs
  2. It prevents the lungs from collapsing; intrapleural pressure< intrapulmonary pressure
25
Q

Borders and contents of pleural cavity

A
  1. Parietal pleura ( fibrous membrane)
  2. Visceral pleura ( serous membrane)

Contents: Pleural fluid

26
Q

Pericardium of heart is made up of

A
  1. Fibrous pericardium
  2. Serous pericardium
    - parietal
    - visceral
27
Q

Borders and contents of pericardial cavity

A
  1. Parietal Pericardium
  2. Visceral pericardium
    Content: Pericardial fluid
28
Q

Borders of Superior mediastinum

A
  1. Superiorly
    - Superior thoracic aperture
  2. Laterally
    - parietal pleura
  3. Anteriorly
    - manubrium and body os sternum
  4. Posteriorly
    - the four thoracic vertebral bodies
  5. Inferiorly
    - imaginary horizontal line drawn from t4
29
Q

Contents of superior mediastinum

A
  1. Trachea
  2. Esophagus
  3. Arch of Aorta
  4. Superior venacava
  5. Arch of Azygous vein
  6. Beachiocephalic veins
  7. Phrenic
  8. Vagus nerve
  9. Thymus remnant
30
Q

Borders of the abdominal cavity

A
  1. Superiorly
    - Diaphram
  2. Anterior and laterally
    - soft tissue and muscles of the abdominal wall
  3. Posteriorly
    - Vertabral bodies and muscle
  4. Inferiorly
    - pelvic inlet
31
Q

Contents of abdominal cavity

A

Liver, stomach, pancreas, the intestines, mesentery, kidneys, adrenal glands, blood vessels and lymphatic drainage

32
Q

Borders of the pelvic cavity

A
  1. Superiorly
    - pelvic inlet
  2. Laterally
    - body of ischium
  3. Anteriorly
    - pubic symphisis
  4. Inferiorly
    - pelvic floor
  5. Posteriorly
    - promontory of sacrum
33
Q

Contents of male and female pelvic cavity

A
  1. Female
    - Sigmoid colon
    - recrum
    - bladder
    - vagina
    - uterus
  2. Male
    - bladder
    - prostate
    Etc

1. Anatomy Terminology (5 decks)

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