Animal As a Whole Flashcards
(24 cards)
Tissues Types
Muscle
Nervous
Epithelia
Connective
Muscle (tissue)
Tissue capable of contraction or movement
there are three types - Skeletal, smooth, and cardiac
Nervous (tissue)
Tissue that conducts electro-chemical impulses to transmit information
Epithelial (tissue)
Tissue that forms layers for protection, absorption or secretion
two sub types
-layers forming inside and outside layers of the body e.g lining or organs or skin
-Glandular tissue. Areas of secretory tissue. e.g salivary gland
Connective (tissue)
Provides physical and nutritional support for the body
4 Sub types of Tissues
Based on Consistency
- Fluids e.g blood
-Loose e.g adipose tissue
-Dense e.g tendons
- Soild- bone and cartilage
3 body Cavities
-thoracic
-abdominal
- Pelvic
Functions of body Cavities
- to contain and provide protection for delicate organs
- to allow those organs to move and change in shape and size e.g breathing
body cavities contains
- viscera - organs that lay in the cavity
- 2 layers of serious membranes forming an envelope around the viscera
Serious membranes
- one layer attached to the inside of the body wall - called the Parietal layer
- other layer of serous membrane surrounds and is adhered to the surface of the viscera and is called the visceral layer
Body Cavities are lined with?
The body cavities are lined with a very thin membrane called a serous membrane
Thoracic cavity boundaries
Cranially - thoracic inlet
Dorsally - Thoracic Vertebrae
Caudally - Diaphragm
Laterally - Ribs
Ventrally - Sternum
Pleural Membranes
The serious membranes lining the thoracic cavity are called Pleural membranes ( they have two connections dorsally and ventrally) Forming two spaces the left and right pleural spaces ( also called pleural cavities
Mediastinum
is the separation between the pleural spaces. its midline and contains many of the thoracic organs e.g heart
Pleural membranes further dived
- Parietal pleura - attached to the thoracic wall
- Visceral/pulmonary pleura - attached to the lung / organs
- mediastinal pleura - attached to the mediastinum
Abdominal Boundaries
- Cranially - Diaphragm
- Dorsally - Lumbar Vertebrae
- Caudally - pelvic inlet
- laterally and ventrally - muscle wall of the abdominal wall
Pelvic Boundaries
-Cranially - pelvic inlet
- Dorsally - Sacral Vertebrae
-Caudally - pelvic inlet
- Laterally and ventrally - bones of the pelvis
Peritoneal membranes
the abdomen and pelvis cavitites are lined with one set of serous membranes
- these are the peritonal membranes and from peritonal space
parietal Peritoneum
Attached to the abdominal and pelvic wall
Visceral Peritoneum
Attached to the abdominal and pelvic viscera.
intra - and retroperitoneal
most organs are almost totally covered in peritoneum - intraperitoneal
Retroperitoneal - pressed against the body wall and so only covered peritoneum on one side
connecting peritoneum
surrounding each organ is connected to the body wall by a double fold. this provides support and supplies blood, lymph vessels, and nerves.
Omentum
is connection between the abdomen wall and the stomach and pancreas
Mesentery
this is a large fan - like structure connecting the intestine to abdomen wall