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Movements of the Upper Cervical Assembly and Strain in the
Movements of the Upper Cervical Assembly and Strain in the

... constraint is not severe. The ventral part of the inferior margin of the cervical vertebrae becomes caudally extruded, to form a beak-like process that overhangs the caudal vertebra, which may becomes a bit eroded on its ventral dorsal margin. About the same time that the uncinate processes develop, ...
THE LUNG AND AIR-SAC SYSTEM OF THE COMMON GRACKLE
THE LUNG AND AIR-SAC SYSTEM OF THE COMMON GRACKLE

... Diverticulum suprahumerale.--D. suprahumerale arises from the lateral side of D. subscapularejust ventral to the scapula and dorsal to the inserting head of M. subcoracoideus(Figures 3, 4). The diverticulum extends between the scapula and M. dorsalis scapulae and expands such that, with the long hea ...
20.脊神经
20.脊神经

... Formation: each spinal nerve is formed by union of anterior and posterior roots at intervertebral The anterior root 前根-contains motor foramen fibers for skeletal muscles. ...
Vestibular
Vestibular

... thalamus, the vestibular neurons project to the vicinity of the central sulcus near the face representation. Sensory inputs from the muscles and skin also converge on thalamic neurons receiving vestibular input. The superior and lateral vestibular nuclei send axons to the ventral posterior nuclear c ...
28 - Dr. Jerry Cronin
28 - Dr. Jerry Cronin

... From Egg to Zygote • For fertilization to occur, coitus must occur no more than – Two days before ovulation – 24 hours after ovulation ...
4 Lecture The BRAINSTEM Medulla Oblongata
4 Lecture The BRAINSTEM Medulla Oblongata

... level of decussation of lemnisci A transverse section through the inferior half of the medulla oblongata, a short distance above the level of the decussation of the pyramids, passes through the decussation of lemnisci, the great sensory decussation The decussation of the lemnisci takes place anterio ...
THORACIC VERTEBRAE
THORACIC VERTEBRAE

... • The spinous process is short, and nearly horizontal in direction. • The transverse processes are very short and have no articular facets for tubercle of ribs ...
THORACIC VERTEBRAE
THORACIC VERTEBRAE

... • The spinous process is short, and nearly horizontal in direction. • The transverse processes are very short and have no articular facets for tubercle of ribs ...
Lab 10
Lab 10

... • Blood supply – ovarian arteries and the ovarian branch of the uterine artery • They are surrounded by a fibrous tunica albuginea, which is covered by a layer of epithelial cells called the germinal epithelium • Embedded in the ovary cortex are ovarian follicles ...
neural crests
neural crests

... The cartilaginous components of those arches fuse and form cartilages of the larynx ( thyroid, cricoid, arytenoid, corniculate and cuneiform). Muscles of fouth arch (cricothyroid, elevator palatini, constrictor of the pharynx) are innervated by superior laryngeal branch of the vagus. Intrinsic musc ...
Human Anatomy — Biology 255
Human Anatomy — Biology 255

... Section 2: “Think Section” Carefully read the scenario below. Within it are several anatomical statements. In the space below you are to (a) one-by-one list the anatomical statements, (b) state whether or not the statements are true or false, and (c) if any of the statements are false state why they ...
Distribution Pattern of Acetylcholinesterase in the Caudal
Distribution Pattern of Acetylcholinesterase in the Caudal

... vagal labes and lateral line lobes, vagal motor nucleus, vagal reticular nucleus and medial funiculus nucleus showed very strong AChE activity in the present study. The presence of cholinergic cells in the visceromotor column is common in all vertebrates studied todate23-28. ChAT immunoreactive moto ...
Back of the neck - Weebly
Back of the neck - Weebly

... Back of the neck Occipital arteryBranch of ECA opposite to the origin of the facial artery Runs backwards & upwards deep to the lower border posterior belly of the digastric muscle, crossing the carotid sheath, accessory and hypoglossal nerves. Runs deep to mastoid process and sternocleidomastoid, ...
Histopathology
Histopathology

... 1. According to you testbook, the germ layers (i.e., ectoderm, mesoderm, and endoderm) mature and differentiate into specific tissues and organ systems during the ________ period of development. a. Implantation period b. Proliferation period c. Embryonic period d. Fetal development period 2. All the ...
D23-1 UNIT 23. DISSECTION: PHARYNX AND LARYNX
D23-1 UNIT 23. DISSECTION: PHARYNX AND LARYNX

... nerve at its entrance into the sternocleidomstoid muscle and trace it proximally toward the jugular foramen. Note the internal jugular vein is anterior to the spinal accessory nerve. Identify the superior cervical ganglion of the cervical sympathetic chain. Find the vagus n. and identify its inferio ...
Larval Development, the Origin of the Coelom and - diss.fu
Larval Development, the Origin of the Coelom and - diss.fu

... Bartolomaeus 2001, Freeman & Martindale 2002, Santagata 2004, Temereva & Malakhov 2006). There is general agreement that the process of mesoderm formation occurs in two successive but distinct events: the first one occurs shortly before or immediately after gastrulation, the second phase occurs afte ...
lower motor neurons
lower motor neurons

... coordinate the muscular activities, maintain the normal body posture and produce habitual and rhythmic movements. For example, riding and running are initiated in the beginning by the pyramidal system, but are controlled by the extrapyramidal system when the motions later become habitual and rhythmi ...
10-cerebellum
10-cerebellum

... -it is formed of superior & inferior medullary vela, which are thin sheets of white matter /consists of : ependyma covered by pia mater. -Sup.medullary velum connects the 2 sup.cerebellar peduncles. -Inf.medullary velum connects the 2 inf.cerebellar peduncles. -Inferior vermis of cerebellum : lies i ...
TSM100 - Leg 1 and Ankle Joint
TSM100 - Leg 1 and Ankle Joint

... The ankle joint is the point of articulation between the distal tibia, fibula and the talus tarsal bone o The distal leg bones each feature malleoli – projections which form an arch at the ankle o Hinge type synovial joint about the trochlear surface of the talus There are seven tarsal bones that ma ...
10-cerebellum
10-cerebellum

... -it is formed of superior & inferior medullary vela, which are thin sheets of white matter /consists of : ependyma covered by pia mater. -Sup.medullary velum connects the 2 sup.cerebellar peduncles. -Inf.medullary velum connects the 2 inf.cerebellar peduncles. -Inferior vermis of cerebellum : lies i ...
Posterior Forearm and Hand
Posterior Forearm and Hand

... 1. To study the muscles of the extensor region of the forearm and hand, including their relationships, origins, insertions, actions, innervations, and blood supply. 2. To learn the compartments under the extensor retinaculum and their contents. 3. To study the boundaries and contents of the anatomic ...
The Spinal Nerves
The Spinal Nerves

... 李振华 ...
pdf
pdf

... symphysis, and extend ventrad to meet ascending trapezoidal members from the ...
To Understand The Organization Of Cranial nerves
To Understand The Organization Of Cranial nerves

... IV. Sensory Afferent Nuclei (Alar Plate derivatives): 1. GSA (General Somatic Afferent) Nuclei: Represented by the sensory trigeminal complex which is located laterally in the brain stem. a) Nucleus of the spinal trigeminal tract (spinal trigeminal nucleus)located in the medulla-relays pain and te ...
video slide - Biology at Mott
video slide - Biology at Mott

... ◦ The blastula consists of a single layer of cells surrounding the blastocoel ◦ Mesenchyme cells migrate from the vegetal pole into the blastocoel ◦ The vegetal plate forms from the remaining cells of the vegetal pole and buckles inward through ...
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Drosophila embryogenesis



Drosophila embryogenesis, the process by which Drosophila (fruit fly) embryos form, is a favorite model system for geneticists and developmental biologists studying embryogenesis. The small size, short generation time, and large brood size make it ideal for genetic studies. Transparent embryos facilitate developmental studies. Drosophila melanogaster was introduced into the field of genetic experiments by Thomas Hunt Morgan in 1909.
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