Body Cavities and Membranes Quiz: Types of Serous Membranes

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Questions and Answers

What is the term for the spaces within the body that contain internal organs?

Tissue layers

Body cavities (correct)

Organ systems

Body membranes

Which bones form the cranial cavity?

The sternum, 24 ribs, and 12 thoracic vertebrae

Only the frontal bone and occipital bone

The 26 individual bones of the vertebral column

The 2 parietal bones, 2 temporal bones, 1 frontal bone, 1 occipital bone, 1 sphenoid bone, and 1 ethmoid bone (correct)

What is the term for the canal that contains and protects the spinal cord?

Vertebral/spinal/neural cavity (correct)

Cranial cavity

Thoracic cavity

Abdominal cavity

What is the term for the bony structure that contains and protects the heart, lungs, oesophagus, trachea, and thymus gland?

Thoracic cavity Signup and view all the answers

How many sub cavities are there in the thoracic cavity?

3 Signup and view all the answers

What is the main function of the body cavities?

To contain and protect internal organs Signup and view all the answers

What is the primary function of the pericardial cavity?

To protect the heart Signup and view all the answers

What is the abdominopelvic region divided into?

Four quadrants and nine regions Signup and view all the answers

What is the purpose of the quadrants in the abdominal cavity?

To locate the site of an abdominopelvic abnormality Signup and view all the answers

What organs are located in the right upper quadrant of the abdominal cavity?

Liver, gall bladder, stomach, and duodenum Signup and view all the answers

What forms the pelvic cavity?

Two hip bones, sacrum, coccyx, and pelvic muscles Signup and view all the answers

What is the purpose of the nine regions of the abdominal cavity?

To locate the site of an abdominopelvic abnormality Signup and view all the answers

Which of the following organs is not protected by the pelvic cavity?

Liver Signup and view all the answers

What is the function of goblet cells in the mucous membrane?

To secrete mucus Signup and view all the answers

What is the purpose of the serous fluid in serous membranes?

To reduce friction between layers Signup and view all the answers

Which of the following is an example of a serous membrane?

Peritoneum Signup and view all the answers

What is the name of the outer layer of serous membranes that lines the walls of cavities?

Parietal layer Signup and view all the answers

Which body cavity is lined by the pericardium?

Pericardial cavity Signup and view all the answers

What is the term for the serous membrane that lines the abdominal cavity and surrounds the abdominal organs?

Peritoneum Signup and view all the answers

Which membrane lines the cavities of the freely movable joints?

Synovial membrane Signup and view all the answers

What is the function of the synovial fluid in the joint cavity?

Lubrication Signup and view all the answers

What is the outer layer of the meninges?

Dura mater Signup and view all the answers

What is the space between the arachnoid mater and pia mater known as?

Subarachnoid space Signup and view all the answers

What is the term for the skin covering the whole body?

Cutaneous membrane Signup and view all the answers

Study Notes

Body Cavities

The body has five cavities: cranial, vertebral, thoracic, abdominal, and pelvic cavities
These cavities contain and protect internal organs

Cranial Cavity

Formed by the cranium (cranial bones) and houses the brain
The bones forming the cranial cavity are:
- 2 parietal bones
- 2 temporal bones
- 1 frontal bone
- 1 occipital bone
- 1 sphenoid bone
- 1 ethmoid bone

Vertebral/Spinal/Neural Cavity

Formed by the 26 individual bones of the vertebral column
Contains and protects the spinal cord

Thoracic Cavity

Formed by the sternum, 24 ribs, and 12 thoracic vertebrae
Contains and protects the heart, lungs, oesophagus, trachea, thymus gland, etc.
Has three sub-cavities:
- Pleural cavity
- Mediastinum
- Pericardial cavity

Abdominal Cavity

Formed by the anterior and posterior abdominal muscles
Contains and protects the stomach, liver, gallbladder, kidneys, spleen, intestines, etc.
Can be subdivided into 4 quadrants or 9 regions

Abdominopelvic Region

Divided into either four quadrants or nine regions
The nine regions are delineated by four planes
The quadrants are used to locate the site of an abdominopelvic abnormality in clinical studies

Pelvic Cavity

Lies within the pelvis and is formed by 2 hip bones, sacrum, coccyx, and pelvic muscles
Contains and protects the urinary bladder, rectum, uterus, ovaries, fallopian tubes, prostate gland, seminal vesicles, ejaculatory ducts, etc.

Body Membranes

Thin sheets of tissues that cover the body, line body cavities, and cover hollow organs within the cavities
Include:
- Mucous membrane
- Serous membrane
- Cutaneous membrane
- Synovial membrane
- Meninges

Cutaneous Membrane

Refers to the skin covering the whole body
Has two layers:
- Epidermis: outer layer
- Dermis: inner layer
Provides protection

Synovial Membrane

Lines the cavities of the freely movable joints (synovial joints) such as the shoulder, elbow, and knee
Lines cavities that do not open to the outside
Secrete synovial fluid into the joint cavity for lubrication
Prevents friction and injury

Meninges

The connective tissue covering the brain and spinal cord, within the dorsal cavity
Consists of three layers:
- Outer layer: Dura mater/layer
- Middle layer: Arachnoid mater/layer
- Inner layer: Pia mater/layer
The space between dura matter and arachnoid matter is called subdural space
The space between the arachnoid matter and pia matter is known as subarachnoid space
The subarachnoid space contains cerebrospinal fluid (CSF)

Mucous Membrane

Epithelial membrane
Has goblet cells that secrete mucus which lubricate the surfaces they line, protecting them from drying, mechanical and chemical injury
Lines the body cavities/tracts that open to the outside such as digestive, respiratory, excretory/URINARY, and reproductive tracts

Serous Membranes

Thin, slippery membrane lines body cavities not open to the outside
Has two layers:
- Parietal layer: outer layer that lines walls of cavities
- Visceral layer: inner layer that covers viscera within the cavities
The space between the two layers contains serous fluid which reduces friction between the two layers
Examples of serous membranes are:
- Pleura: covers the lungs and has pleural cavity
- Pericardium: covers the heart and has pericardial cavity
- Peritoneum: lines the abdominal cavity and covers the abdominal organs, and has peritoneal cavity

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Description

Test your knowledge of body cavities and body membranes, including their locations, functions, and contents. This quiz covers topics from NUR 101, suitable for Level 100 and 200 students of General Nursing and Midwifery.

Human Anatomy 1: Body Cavities and Body Membranes

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