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A&P 1 Lab Exam 2 Blinn College Paulhill
Questions with Detailed Verified Answers
Long Bones Ans: bones that are longer than they are wide
Short Bones Ans: bone is about as long as it is wide
Flat Bones Ans: Broad, flat and thin
Irregular Bones Ans: Bones shape does not fit into other classes
Sesamoid Bones Ans: round, flat bone found within tendon
Spongy Bone Ans: Layer of bone tissue having many small spaces and found just
inside the layer of compact bone. Spongy bone, also known as cancellous or
trabecular bone, is a type of bone tissue that is less dense and lighter than compact
bone.
Compact Bone Ans: Compact bone is the hard, dense, smooth, white outer layer of
bones in the human body. It's also known as cortical bone. Compact bone's main
function is to protect and strengthen bones.
What does spongy bone contain? pt.1 Ans: Trabeculae-
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Spongy bone is made up of a network of trabeculae, which are small, flat plates of
bone that form a mesh-like structure. The trabeculae are arranged in a way that
provides maximum strength, similar to braces that support a building.
What does spongy bone contain? pt.2 Ans: Endosteum-
The endosteum is a layer that lines the spongy bone and separates it from the
marrow cavity. The endosteum is irregular in appearance and tightly adheres to the
trabeculae.
What does spongy bone contain? pt.3 Ans: Bone marrow-
The spaces between the trabeculae are often filled with bone marrow. Red bone
marrow contains hematopoietic stem cells, while yellow bone marrow contains
adipocytes.
What does spongy bone contain? pt. 4 Ans: Canaliculi-
Canaliculi connect to the cavities in the spongy bone to receive their blood supply.
What does spongy bone contain? pt. 5 Ans: Osteocytes-
Osteocytes are living bone cells that are housed in lacunae, which are small chambers
found at the borders of adjacent trabeculae.
What does spongy bone contain? pt. 6 Ans: Osteoblasts, osteocytes, and
osteoclasts-
These three types of bone cells are found inside the trabeculae. Osteoblasts create
new bone, osteocytes are the result of osteoblasts becoming surrounded by hard
tissue, and osteoclasts break down and destroy old or damaged bone.
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What does compact bone contain? pt. 1 Ans: The superficial anatomy of compact
bone refers to its outer surface, which is primarily characterized by a fibrous
membrane called the periosteum, covering the entire bone except for joint surfaces
where articular cartilage is present; this periosteum serves as an attachment point for
muscles and tendons, and supplies blood vessels and nerves to the underlying
compact bone tissue.
What does compact bone contain? pt. 2 Ans: Periosteum-
The most prominent feature, a tough outer layer of connective tissue that tightly
adheres to the compact bone surface.
What does compact bone contain? pt. 3 Ans: No visible osteons-
Unlike in a microscopic view, the individual structural units of compact bone (osteons)
are not visible on the surface.
What does compact bone contain? pt.4 Ans: Attachment points-
The periosteum provides attachment sites for tendons and ligaments due to its
fibrous nature.
What does compact bone contain? pt. 5 Ans: Blood supply-
Blood vessels entering the bone through the periosteum provide nourishment to the
underlying compact bone tissue.
Bones of the axial skeleton Ans: Your axial skeleton is made up of the 80 bones
within the central core of your body. This includes bones in your skull (cranial and
facial bones), ears, neck, back (vertebrae, sacrum and tailbone) and ribcage
(sternum and ribs).
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bones of the appendicular skeleton Ans: The appendicular skeleton is made up of
the bones in the upper and lower limbs, including the hands, feet, arms, legs, and
pelvic girdle. The appendicular skeleton has 126 bones in total.
The major bones of the human skeleton Ans: The major bones of the human
skeleton include: the skull, spine (vertebrae), ribs, sternum (breastbone), clavicle
(collarbone), scapula (shoulder blade), humerus (upper arm), radius and ulna
(forearm), femur (thigh), tibia (shinbone), and fibula (lower leg bone).
Fissures Ans: In human anatomy, a "fissure" refers to a deep groove or split
between different anatomical structures.
Brain fissures Ans: Longitudinal fissure: Divides the left and right cerebral
hemispheres.
Central sulcus (Fissure of Rolando): Separates the frontal and parietal lobes.
Lateral fissure (Sylvian fissure): Separates the temporal lobe from the frontal and
parietal lobes.
Parieto-occipital fissure: Divides the parietal and occipital lobes.
Articulations Ans: In anatomy, an articulation, also known as a joint, is the point
where two or more bones meet and are connected. Articulations can also refer to
other anatomical joinings, such as the connection of two blood vessels.
Projections Ans: In anatomy, a projection is a raised area of a bone that extends
above the bone's surface. Projections are also known as processes, and they serve as
attachment points for tendons and ligaments. The shape and size of a projection
indicates the force exerted through the attachment.
A&P 1 Lab Exam 2 Blinn College Paulhill
Questions with Detailed Verified Answers
Long Bones Ans: bones that are longer than they are wide
Short Bones Ans: bone is about as long as it is wide
Flat Bones Ans: Broad, flat and thin
Irregular Bones Ans: Bones shape does not fit into other classes
Sesamoid Bones Ans: round, flat bone found within tendon
Spongy Bone Ans: Layer of bone tissue having many small spaces and found just
inside the layer of compact bone. Spongy bone, also known as cancellous or
trabecular bone, is a type of bone tissue that is less dense and lighter than compact
bone.
Compact Bone Ans: Compact bone is the hard, dense, smooth, white outer layer of
bones in the human body. It's also known as cortical bone. Compact bone's main
function is to protect and strengthen bones.
What does spongy bone contain? pt.1 Ans: Trabeculae-
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Spongy bone is made up of a network of trabeculae, which are small, flat plates of
bone that form a mesh-like structure. The trabeculae are arranged in a way that
provides maximum strength, similar to braces that support a building.
What does spongy bone contain? pt.2 Ans: Endosteum-
The endosteum is a layer that lines the spongy bone and separates it from the
marrow cavity. The endosteum is irregular in appearance and tightly adheres to the
trabeculae.
What does spongy bone contain? pt.3 Ans: Bone marrow-
The spaces between the trabeculae are often filled with bone marrow. Red bone
marrow contains hematopoietic stem cells, while yellow bone marrow contains
adipocytes.
What does spongy bone contain? pt. 4 Ans: Canaliculi-
Canaliculi connect to the cavities in the spongy bone to receive their blood supply.
What does spongy bone contain? pt. 5 Ans: Osteocytes-
Osteocytes are living bone cells that are housed in lacunae, which are small chambers
found at the borders of adjacent trabeculae.
What does spongy bone contain? pt. 6 Ans: Osteoblasts, osteocytes, and
osteoclasts-
These three types of bone cells are found inside the trabeculae. Osteoblasts create
new bone, osteocytes are the result of osteoblasts becoming surrounded by hard
tissue, and osteoclasts break down and destroy old or damaged bone.
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What does compact bone contain? pt. 1 Ans: The superficial anatomy of compact
bone refers to its outer surface, which is primarily characterized by a fibrous
membrane called the periosteum, covering the entire bone except for joint surfaces
where articular cartilage is present; this periosteum serves as an attachment point for
muscles and tendons, and supplies blood vessels and nerves to the underlying
compact bone tissue.
What does compact bone contain? pt. 2 Ans: Periosteum-
The most prominent feature, a tough outer layer of connective tissue that tightly
adheres to the compact bone surface.
What does compact bone contain? pt. 3 Ans: No visible osteons-
Unlike in a microscopic view, the individual structural units of compact bone (osteons)
are not visible on the surface.
What does compact bone contain? pt.4 Ans: Attachment points-
The periosteum provides attachment sites for tendons and ligaments due to its
fibrous nature.
What does compact bone contain? pt. 5 Ans: Blood supply-
Blood vessels entering the bone through the periosteum provide nourishment to the
underlying compact bone tissue.
Bones of the axial skeleton Ans: Your axial skeleton is made up of the 80 bones
within the central core of your body. This includes bones in your skull (cranial and
facial bones), ears, neck, back (vertebrae, sacrum and tailbone) and ribcage
(sternum and ribs).
, Page | 4
bones of the appendicular skeleton Ans: The appendicular skeleton is made up of
the bones in the upper and lower limbs, including the hands, feet, arms, legs, and
pelvic girdle. The appendicular skeleton has 126 bones in total.
The major bones of the human skeleton Ans: The major bones of the human
skeleton include: the skull, spine (vertebrae), ribs, sternum (breastbone), clavicle
(collarbone), scapula (shoulder blade), humerus (upper arm), radius and ulna
(forearm), femur (thigh), tibia (shinbone), and fibula (lower leg bone).
Fissures Ans: In human anatomy, a "fissure" refers to a deep groove or split
between different anatomical structures.
Brain fissures Ans: Longitudinal fissure: Divides the left and right cerebral
hemispheres.
Central sulcus (Fissure of Rolando): Separates the frontal and parietal lobes.
Lateral fissure (Sylvian fissure): Separates the temporal lobe from the frontal and
parietal lobes.
Parieto-occipital fissure: Divides the parietal and occipital lobes.
Articulations Ans: In anatomy, an articulation, also known as a joint, is the point
where two or more bones meet and are connected. Articulations can also refer to
other anatomical joinings, such as the connection of two blood vessels.
Projections Ans: In anatomy, a projection is a raised area of a bone that extends
above the bone's surface. Projections are also known as processes, and they serve as
attachment points for tendons and ligaments. The shape and size of a projection
indicates the force exerted through the attachment.
